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kishor chandra Joshi

kishor chandra Joshi
CNRS|University of Paris Saclay|Centralesupelec · L2S

PhD

About

31
Publications
5,490
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632
Citations

Publications

Publications (31)
Preprint
Accurate reliability modeling for ultra-reliable low latency communication (URLLC) and hyper-reliable low latency communication (HRLLC) networks is challenging due to the complex interactions between network layers required to meet stringent requirements. In this paper, we propose such a model. We consider the acknowledged mode of the radio link co...
Preprint
Full-text available
Edge computing is an emerging approach that enables applications to run closer to users, accommodating their specific execution time requirements. Edge computing systems usually consist of heterogeneous processing and networking components, resulting in task performance inconsistency. To improve the performance consistency of edge computing, this s...
Preprint
Full-text available
Intelligent reconfigurable surface (IRS) is being seen as a promising technology for 6G wireless networks. The IRS can reconfigure the wireless propagation environment, which results in significant performance improvement of wireless communications. In this paper, we analyze the performance of bandwidth-efficient quadrature amplitude modulation (QA...
Article
Full-text available
The link misalignment and high susceptibility to blockages are the biggest hurdles in realizing 60-GHz-based wireless local area networks (WLANs). However, much of the previous studies investigating 60 GHz alignment and blockage issues do not provide an accurate quantitative evaluation from the perspective of WLANs. In this article, we present an i...
Preprint
In recent years, enormous growth has been witnessed in the computational and storage capabilities of mobile devices. However, much of this computational and storage capabilities are not always fully used. On the other hand, popularity of mobile edge computing which aims to replace the traditional centralized powerful cloud with multiple edge server...
Preprint
Full-text available
The link misalignment and high susceptibility to blockages are the biggest hurdles in realizing 60GHz based wireless local area networks (WLANs). However, much of the previous studies investigating 60GHz alignment and blockage issues do not provide an accurate quantitative evaluation from the perspective of WLANs. In this paper, we present an in-de...
Preprint
Ultra-low latency and high reliability communications are the two defining characteristics of Tactile Internet (TI). Nevertheless, some TI applications would also require high data-rate transfer of audio-visual information to complement the haptic data. Using Millimeter wave (mmWave) communications is an attractive choice for high datarate TI appli...
Preprint
IEEE 802.11ad specifies a hybrid medium access control (MAC) protocol consisting of contention as well as noncontention-based channel access mechanisms. Further, it also employs directional antennas to compensate for the high freespace path loss observed in 60GHz frequency band. Therefore, it significantly differs from other IEEE 802.11(b/g/n/ac) M...
Preprint
60GHz wireless local area networks (WLANs) standards (e.g., IEEE 802.11ad and IEEE 802.15.3c) employ hybrid MAC protocols consisting of contention based access using CSMA/CA as well as dedicated service periods using time division multiple access (TDMA). To provide the channel access in the contention part of the protocol, quasi omni (QO) antenna p...
Article
Ultra-low latency and high reliability communications are the two defining characteristics of Tactile Internet (TI). Nevertheless, some TI applications would also require high data-rate transfer of audio-visual information to complement the haptic data. Using Millimeter wave (mmWave) communications is an attractive choice for high datarate TI appli...
Article
Full-text available
The IEEE "Tactile Internet" (TI) Standards working group (WG), designated the numbering IEEE 1918.1, undertakes pioneering work on the development of standards for the TI. This paper describes the WG, its intentions, and its developing baseline standard and the associated reasoning behind that and touches on a further standard already initiated und...
Chapter
This chapter focuses on the beamforming mechanism and protocols that enables fast link setup in 5G Millimeter (mm) Wave directional links. In general, there are two kinds of beamforming: adaptive beamforming and switched beamforming. There are three kinds of beamforming architectures, namely, analog beamforming, digital beamforming, and the hybrid...
Article
Due to a tremendous increase in mobile traffic, mobile operators have started to restructure their networks to offload their traffic in the unlicensed bands. The 3GPP new technologies of LAA and LTE-U employ an unlicensed radio interface that operates over the 5 GHz unlicensed band to leverage the radio resources for operators' transmissions. 5G re...
Article
Full-text available
Millimeter-wave (mm-wave) communications and nonorthogonal multiple access (NOMA) are two important techniques to achieve high data rates in fifth-generation (5G) ultradense networks (UDNs). Due to interference that is intentionally added during the superpositioned transmissions with NOMA, an additional power budget is required to maintain the targ...
Article
IEEE 802.11ad specifies a hybrid medium access control (MAC) protocol consisting of contention as well as noncontention- based channel access mechanisms. Further, it also employs directional antennas to compensate for the high freespace path loss observed in 60GHz frequency band. Therefore, it significantly differs from other IEEE 802.11(b/g/n/ac)...
Article
Full-text available
Rapid proliferation of wireless communication devices and the emergence of a variety of new applications have triggered investigations into next-generation mobile broadband systems, i.e., 5G. Legacy 2G--4G systems covering large areas were envisioned to serve both indoor and outdoor environments. However, in the 5G-era, 80\% of overall traffic is e...
Conference Paper
Full-text available
Millimeter wave (mmWave) communication is being seen as a disruptive technology for 5G era. In particular, 60 GHz frequency band has emerged as a promising candidate for multiGbps connectivity in indoor and hotspot areas. In terms of network architecture, cloud radio access network (CRAN) has emerged as the most promising architectural alternative...
Article
Full-text available
The 60GHz frequency band promises very high data rates -- in the order of Gb/s -- due to the availability of high bandwidth. However, high free-space path loss makes it necessary to employ beamforming capable directional antennas. When beamforming is used, the links are sensitive to misalignment in antenna directionality because of movement of devi...
Article
Full-text available
Communication at mmWave frequencies has been the focus in the recent years. In this paper, we discuss standardization efforts in 60 GHz short range communication and the progress therein. We compare the available standards in terms of network architecture, medium access control mechanisms, physical layer techniques and several other features. Compa...
Article
In-home networking is becoming a reality. New multimedia applications envisaged for indoor networks require data rate of up to several gigabits per second. In order to meet such a demand for high data rate unlicensed spectrum of 5GHz around 60GHz band is being considered for a potential choice. This pico cellular infrastructure also helps in reduci...
Conference Paper
60 GHz wireless local area networks (WLANs) standards (e.g., IEEE 802.11ad and IEEE 802.15.3c) employ hybrid MAC protocols consisting of contention based access using CSMA/CA as well as dedicated service periods using time division multiple access (TDMA). To provide the channel access in the contention part of the protocol, quasi omni (QO) antenna...
Article
A long reach fiber wireless network is proposed for 60-GHz wireless application and all-optical routing/multicasting with simplified structure. This scheme is based on remote up-conversion and can provide flexible reach $({>}{rm 100}~{rm km})$ together with a reconfigurable platform for dynamic bandwidth allocation at the physical layer. The experi...
Conference Paper
Full-text available
Even though 60 GHz frequency band has limited coverage, due to the availability of higher bandwidth worldwide (unlicensed, approximately 5 GHz between 57-62 GHz), it is one of the promising candidates for future broadband employing both Fiber and Wireless (Fi-Wi) technology. In this article we briefly explain an in-home radio over fiber (RoF) archi...

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