Zhiqiang - Liu

• Huazhong University of Science and Technology

Research findings concerning the effects of perceived overqualification on task performance are mixed. To reconcile the disparate findings, drawing on person‐environment theory, we propose cynicism toward the job and constructive deviance as contrasting dual pathways that explain the negative and positive effects of perceived overqualification on t...

Purpose Based on theory Z of leadership, this research aims to investigate the direct relationship between participative leadership (PL) and creative idea validation (CIV) fostering both radical (RC) and incremental creativity (IC). Additionally, by utilizing attribution theory, it explores the moderating effect of coworkers’ knowledge-sharing beha...

Although some organizations encourage employees to generate radical ideas by implementing stretch goals, the relationship between stretch goals and radical creativity is complicated. Unfortunately, existing research has not adequately addressed this issue. Therefore, we integrate signaling theory with creativity-related research and propose that th...

Status difference is prevalent within working groups, profoundly influencing employees' perceptions and behaviours towards coworkers and their groups. Despite this ubiquity, exploring the effects of status difference within groups remains relatively underexamined. Drawing on social identity theory, this study examined how and when horizontal status...

Research findings concerning the effects of perceived overqualification on task performance are mixed. To reconcile the disparate findings, drawing on person‐environment theory, we propose cynicism toward the job and constructive deviance as contrasting dual pathways that explain the negative and positive effects of perceived overqualification on t...

Corporate social responsibility (CSR) initiatives are increasingly being viewed not only as tools that benefit society but also as important drivers of employee behaviors. However, little is known about why and under what circumstances firm CSR practices relate to employee behaviors in their non-work lives (i.e., work-family positive spillover) and...

Purpose-This study, based on motivated information processing theory and theories of leadership (contingency and functional), investigates how servant leadership (SL) could be an effective leadership style for employee creative deviance engagement (CDE) to foster radical (RC) and incremental creativity (IC) in two different goal-oriented organizati...

In recent years, entrepreneurial orientation (EO) has emerged as a key concept in the management literature, with various studies demonstrating its positive effects on important firm-level outcomes. However, our understanding of whether and how EO shapes dynamics within organizations is still underdeveloped. Thus, by integrating EO and social infor...

Practitioner notes What is currently known? Socially responsible human resource management (SRHRM) is important in connecting the external corporate social responsibility (CSR) activities of firms with internal HR practices. SRHRM can increase employee performance through organizational identification. Perceived organizational support moderates the...

The importance of emotional labouring and performance of frontline service employees, who in their boundary-spanning positions significantly affect service-rendering organisations’ efficiency by their direct communications with customers, continues to increase. However, it is still important to ascertain an efficient understanding of the comprehens...

Although the supply chain (SC) literature has discussed the influence of the political environment on global SC decisions, the role of political leaders has been overlooked. To fill this research void, we predict and show that the turnover of a country's top political leader (hereafter, “politician turnover”) increases policy uncertainty in the cou...

Decades of research on leader–member exchange (LMX), which refers to relationship quality between a leader and follower, has consistently shown LMX to be positively related to individual outcomes. An emerging body of research exploring whether these positive results extend to the team level has found inconsistent results. Because team LMX relations...

Purpose Based on trait activation theory, this study validates the boundary effect of perceived organizational support (POS) on employee empowerment (EE) to sustain employee’s taking charge behaviour (TCB). It hypothesizes that EE has a strongly significant and positive relationship with TCB when POS is high. Methodology The authors selected a tim...

Purpose This study aims to investigate the effects of leaders’ stewardship behavior (LSB) on followers’ radical innovation (RI). Followers’ knowledge management dynamic capability (KMDC) has been a mediating role, while environmental uncertainty (EU) acted as a moderating factor in the context of the textile and apparel industry in the developing c...

The purpose of this study is to explain why employees likely to engage in unethical pro-team behaviors and how transformational leaders involve controlling unethical pro-team behaviors in a competitive work environment. The study employed a quantitative approach to investigate the association between the competitive psychological climate and percei...

Adopting a motivational perspective on creativity, we theorized when and how perceived cognitive diversity in teams was associated with creativity by focusing on the mediating role of intrinsic motivation and the moderating role of learning orientation. We further expanded our contribution by examining these relationships at both the individual and...

How does diversity of social ties influence creativity? Moving beyond the information argument, we theorize creative self-efficacy as a motivational explanation for the relationship between diversity of social ties and creativity. We further posit tie strength as a boundary condition for this mechanism. We collected social ties data from 309 employ...

Based on Construal-level theory, this study hypothesized that self-actualization positively relates to employees’ taking charge, and self-actualization affects creative performance and normal performance through taking charge positively, but the effect is different. The authors selected a cross-sectional design to investigate interrelations amongst...

Drawing on self-fulfilling prophecy theory and status boundary condition, the aim of this research is to test if promotion focus motivation mediates the employees' self-performance expectations towards breakthrough creativity. Besides, this paper also examines whether status stability significantly moderates the relationship between self-performanc...

To overcome the negative outcomes of dependence, disadvantaged parties in exchange relationships characterized by dependence asymmetry seek effective strategies to rebalance their dependence. Obtaining legitimacy in the eyes of the advantaged party through legitimizing actions is a novel way to influence the advantaged party's exchange and conflict...

This study examined how taking charge was related to job satisfaction, affective organizational commitment, and job performance among Hong Kong Chinese newcomers, and how emotional competence moderates the latter relationships. The results of a two-wave survey study involving 137 newcomers supported the proposition that taking charge would be posit...

This study investigates the relationship between leadership, value congruence, and employees’ intention to leave in China’s hospitality industry. We test the moderating effect of cultural values on the relationships between these factors using data gathered from employees at ten branches of a major restaurant chain in South China. Our results show...

We theorized and tested the mechanisms by which leader–member exchange (LMX) quality is associated with job performance. The results obtained using 212 employee–supervisor pairs from eight Chinese companies indicated that LMX quality had an indirect and positive relationship with taking charge via psychological empowerment and had an indirect and p...

This study seeks to understand how consumers make unethical decisions and how unethical consumer behavior (UCB) is formed in a relational society. By taking a relational interactive perspective and adopting a grounded theory approach, we have developed a theoretical framework for examining UCB’s developmental process in a relational society. The fr...

This study examined when and how cognitive diversity influences creativity by focusing on the mediating role of intrinsic motivation and the moderating roles of team learning orientation and job requirement for creativity. Based on a sample of 382 employee–supervisor pairs in 106 teams, multi-level analyses revealed that team learning orientation p...

Summary We theorized and tested the mechanisms by which leader–member exchange (LMX) quality is associated with job performance. The results obtained using 212 employee–supervisor pairs from eight Chinese companies indicated that LMX quality had an indirect and positive relationship with taking charge via psychological empowerment and had an indire...

We theorized and tested the underlying mechanism by which influence centrality (i.e., central position in influence networks) relates to employee outcomes (i.e., job performance and organizational citizenship behaviors). Based on a sample of 595 employee-supervisor pairs from 25 organizations, results revealed a positive relationship between influe...

Purpose – The purpose of this research is to study how an approach of culturally‐specific human resource management (HRM) should moderate the relationship between leadership style and employee turnover. Design/methodology/approach – Questionnaire data were collected from firms in both Shenzhen and Hong Kong. The subjects are 190 leader/member dyad...

Self-determination theory (SDT) posits the existence of distinct types of motivation (i.e., external, introjected, identified, integrated, and intrinsic). Research on these different types of motivation has typically adopted a variable-centered approach that seeks to understand how each motivation in isolation relates to employee outcomes. We exten...

In this research, we study the issues of corporate sustainable development in China. Based on relevant research, we propose a theoretical model showing the relationship among business environmental commitment, cultural value, employee training, and firm performance of sustainable development. It is argued that a cultural value (i.e., organizational...

We theorized and tested how leader-member exchange (LMX) is associated with employee outcomes (i.e., job performance and organizational citizenship behavior). The results obtained using 226 employee-supervisor pair questionnaires from 12 Chinese companies indicated that taking charge significantly mediated the relationship between LMX and employee...

This study tests the effect of collectivism-oriented HRM (C-HRM) and that of firm strategy on firm performance among samples of international firms. Based on the relevant literature, we predict that C-HRM should have a positive effect on firm performance. Moreover, we argue that a contingent factor, i.e. firm strategy of product diversification, sh...

This study tests the effect of collectivism-oriented HRM (C-HRM) and that of firm strategy on firm performance among samples of international firms. Based on the relevant literature, we predict that C-HRM should have a positive effect on firm performance. Moreover, we argue that a contingent factor, i.e. firm strategy of product diversification, sh...

Should employee training influence firms' performance in sustainable development? Based on research, we predict both direct and moderating effects of employee training on the performance. Assuming the institutional demands in modern societies for environmental protection, we hypothesize that employee training consistent with the demands should have...

In this paper, we study the interactions between entrepreneur culture and entrepreneur activities by focusing on the evolution of entrepreneurship among Oriental Chinese societies. It is argued that the evolutions of entrepreneurship at the societal level can be considered mainly institutional processes, i.e., the processes of systematic changes sh...

This study deals with the issue whether HRM policies/practice are cultural specific with consideration on the moderating effect of firm strategy. Based on relevant literature, we predict that HRM is cultural-specific and the alignment of HRM with societal culture should have a positive effect on firm performance. Also, we argue that a contingent fa...

This study explores the linear logic between consumer ethical beliefs (CEBs) and consumer unethical behavior (CUB) in a Chinese context. A relational view helps fill the belief–behavior gap by exploring the moderating role of relationship quality in reducing CUBs. Specifically, when consumers are more receptive to a set of actions that may be deeme...

In this paper, we pursue the preamble design for multiple-antenna orthogonal frequency division multiplexing (OFDM) communications over frequency-selective channels. To reduce the overhead and minimize the peak-to-average power ratio, we propose a preamble consisting of a single constant- modulus training sequence per transmit-antenna. This propose...

In this letter, we consider optimal training designs for multiple-antenna cyclic-prefix-based single-carrier transmissions over frequency-selective channels. Our objective is to find optimal training sequences such that the mean-squared error of least-squares channel estimates is minimized, under constraints on the power, length, and modulus of tra...

This paper develops an optimal pilot superimposition scheme for zero-padded single-carrier transmissions. With the goal of minimizing the mean-squared error of channel estimates which have been acquired from those superimposed pilots based on the first-order statistics, it is proved that the optimal pilot sequence should contain only a single non-z...

This paper proposes a novel blind time-offset (TO) estimation scheme for orthogonal frequency division multiplexing (OFDM) systems. Based on the observation that a TO almost surely gives rise to interblock interference (IBI), the proposed TO estimation is accomplished by minimizing the EBI. Borrowing the idea of differential decoding, the need of c...

A new preamble design for MIMO-OFDM is proposed in this paper. Based on the Chu sequence, the proposed preamble can be used to achieve frequency offset estimation, fine time offset estimation, and optimal least-squares channel estimation. In addition, since the preamble has constant modulus, it has low peak-to-average power ratio. Furthermore, chan...

In this paper, we propose a systematic approach to the design of optimal training for multiple-antenna communications. We first derive two design criteria for general optimal training: one is in the time domain and the other is in the frequency domain. The frequency-domain design criterion leads to a systematic design procedure that can be used to...

Addressing orthogonal frequency division multiplexing (OFDM) transmissions over frequency-selective Rayleigh fading channels, we propose a differential space-time-frequency (DSTF) coding scheme with maximum multipath diversity. Resorting to subcarrier grouping, we convert the system into a set of parallel DSTF systems, within which DSTF coding is c...

In broadband wireless communications, multipath propagation often results in an overall channel with a long impulse response that could span tens or even hundreds of symbol intervals. To equalize such long channels, conventional single-carrier time-domain equalization becomes infeasible due to high computational complexity. Relying on the use of fa...

This paper proposes a novel frequency offset (FO) estimator for differential orthogonal frequency division multiplexing. By separating the normalized FO into integral and fractional parts, our FO estimation is carried out in two successive stages. In the first stage, we take advantage of differential coding and the finiteness of signal constellatio...

This paper proposes a novel blind carrier frequency offset (CFO) estimator for differential OFDM. By separating the normalized CFO into integral and fractional parts, our CFO estimation is carried out in two successive stages. In the first stage, we take advantage of differential coding and the finiteness of signal constellation to derive a channel...

A novel blind carrier frequency offset estimator is proposed for differentially coded OFDM. Exploiting differential encoding and finiteness of signal constellation, our carrier-frequency offset estimation is carried out without requiring either channel knowledge or training. It is proved that under certain mild assumptions, the proposed estimator i...

This paper proposes a novel block differentially encoded orthogonal frequency-division multiplexing for multicarrier transmissions over frequency-selective fading channels. Choosing appropriate system parameters, we divide the set of correlated subchannels into subsets of independent subchannels. Within each subset, differential unitary space-time...

Orthogonal frequency-division multiplexing (OFDM) converts a frequency-selective fading channel into parallel flat-fading subchannels, thereby simplifying channel equalization and symbol decoding. However, OFDM's performance suffers from the loss of multipath diversity, and the inability to guarantee symbol detectability when channel s occur. We in...

This paper proposes novel space-time-frequency (STF) coding for multi-antenna orthogonal frequency-division multiplexing (OFDM) transmissions over frequency-selective Rayleigh fading channels. Incorporating subchannel grouping and choosing appropriate system parameters, we first convert our system into a set of group STF (GSTF) systems. This enable...

This paper proposes novel space-time-frequency (STF) block coding for multi-antenna OFDM transmissions over frequencyselective Rayleigh fading channels. Incorporating subcarrier group- ing and choosing appropriate system parameters, we first convert our system into a set of group STF (GSTF) systems. This enables simplification of STF block coding w...

Integrated Services in W'n'eless Networks call for a physical layer which can support multirate transmissions and guarantee symbol recovery at the receiver. Multirate transmissions are necessary for data applicalons with diverse needs in throughput/delay, whereas symbol re- covery leads to Quality of Service guarantees in terms of bit error rate. I...

Recent theoretical and experimental studies have shown that with affordable complexity, layered space-time (LST) transmissions can attain very high spectral efficiency in a rich-scattering environment. In this paper, we propose a novel high rate linearly precoded LST system, which allows for any number of transmit and receive antennas, and offers f...

This paper proposes a novel decoding scheme for Alamouti's (see IEEE J. Select. Areas Commun., vol.16, p.1451-1458, 1998) space-time (ST) coded transmissions over time-selective fading channels that arise due to Doppler shifts and carrier frequency offsets. Modeling the time-selective channels as random processes, we employ Kalman filtering for cha...

A novel space-time-frequency (STF) trellis coding scheme is developed for multi-antenna OFDM transmissions over frequency-selective Rayleigh fading channels. Incorporating subcarrier grouping and choosing appropriate system parameters, we first convert our system into a set of group STF (GSTF) systems. This enables simplification of STF block codin...

This paper proposes novel space-time-frequency (STF) block coding for multi-antenna OFDM transmissions over frequency-selective Rayleigh fading channels. Incorporating subcarrier grouping and choosing appropriate system parameters, we first convert our system into a set of group STF (GSTF) systems. This enables simplification of STF block coding wi...

Most existing space-time coding schemes assume time-invariant fading channels and offer antenna diversity gains relying on accurate channel estimates at the receiver. Other single differential space-time block coding schemes forego channel estimation but are less effective in rapidly fading environments. Based on a diagonal unitary matrix group, a...

Transmit antenna diversity has been exploited to develop high-performance space-time coders and simple maximum-likelihood decoders for transmissions over flat fading channels. Relying on block precoding, this paper develops generalized space-time coded multicarrier transceivers appropriate for wireless propagation over frequency-selective multipath...

Mitigation of multipath fading effects and suppression of multiuser interference (MUI) constitute major challenges in the design of wide-band third-generation wireless mobile systems. Space-time (ST) coding offers an effective transmit-antenna diversity technique to combat fading, but most existing ST coding schemes assume flat fading channels that...

Relying on space-time generalized multicarrier CDMA and exploiting both transmit and receive antenna diversity, we design herein multirate transceivers which guarantee deterministic symbol recovery with multipath-diversity gains regardless of the (possibly unknown) frequency-selective FIR channels and multiuser interference. Our approach is based o...

In this paper we design space-time multiuser transceivers suitable for coping with frequency-selective multipath channels (downlink or uplink). Relying on symbol blocking, space-time codes are derived in the frequency-domain and MUI is eliminated without destroying the orthogonality of space-time block codes. The system is shown capable of providin...

In wireless networks, the provision of QoS guarantees needs to address the limited capacity of the physical medium. Such an objective calls for the joint design and integration of the network layer, medium access control, and physical layer. Supporting Integrated Services at the network layer demands amulti-rate transmission scheme at the physical...

In the spirit of BLAST systems, this paper proposes a novel layered space-time (ST) coding scheme. By slicing the two-dimensional ST code into a stack of one-dimensional so-called layer codes, ST coding and decoding are performed in a layer by layer fashion. Because different layers are transmitted independently, the proposed scheme is capable of s...

This paper introduces linear constellation precoding (LCP) for OFDM transmissions over frequency-selective fading channels. Exploiting the correlation structure of OFDM subchannels, and choosing system parameters properly, we first perform optimal subcarrier grouping to divide the set of correlated subchannels into subsets. Within each subset, a no...

The development of broadband wireless communication systems must cope with various performance-limiting challenges that include channel fading as well as size and power limitations at the mobile units. As a promising method dealing with these challenges, space–time coding is effective in supporting reliable, high-data-rate transmissions: the major...

In this paper we design space-time multiuser transceivers suitable for coping with frequency-selective multipath channel (downlink or uplink). Relying on symbol blocking, space-time codes are derived in the frequency-domain and MUI is eliminated without destroying the orthogonality of space-time block codes. The system is shown capable of providing...

Most existing space-time coding schemes assume time-invariant fading channels and offer antenna diversity gains relying on accurate channel estimates at the receiver. Based on a diagonal unitary matrix group, a novel double differential space-time block coding approach is derived for time-selective fading channels. Without estimating the channels a...

Integrated services in wireless networks call for a physical layer which can support multirate transmissions and guarantee symbol recovery at the receiver. Multirate transmissions are necessary for data applications with diverse needs in throughput/delay, whereas symbol recovery leads to quality of service guarantees in terms of bit error rate. We...