Conference Proceeding

Scheduling and Resource Allocation of Enhanced Uplink for 3GPP W-CDMA

Motorola Inc. Networks Bus.
10/2005; DOI:10.1109/PIMRC.2005.1651772 In proceeding of: Personal, Indoor and Mobile Radio Communications, 2005. PIMRC 2005. IEEE 16th International Symposium on, Volume: 3
Source: IEEE Xplore

ABSTRACT Enhanced uplink technology is being standardized in release-6 of 3GPP W-CDMA specifications with the completion date of 2nd quarter of 2005. Advanced features being introduced include adaptive modulation and coding, hybrid ARQ, fast rate control or scheduling by the base station, higher peak rates (5.76 Mbps) and support of 2 ms TTI. These techniques reduce overall delay and increase throughput significantly compared to earlier releases of 3GPP W-CDMA (release-99/4/5). As a result, enhanced uplink significantly improves the user mobile experience and enable new services and applications. In this paper, the scheduling and resource allocation aspects of enhanced uplink are discussed with accompanying analysis and system simulation results. These results show that enhanced uplink improves sector and user throughput by approximately 50-80% compared to earlier 3GPP W-CDMA releases

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    ABSTRACT: In this paper, we investigate the potential benefit of successive interference cancellation (SIC) in high speed uplink packet access (HSUPA). We explore the possibility of improving the performance of HSUPA by introducing the SIC and we also bring forward a novel scheduling method named effective power-based load control (EPBLC) to extend its advantage. Finally we give the conclusion that with SIC and EPBLC, we can get 43%-56% throughput gain under different interference cancellation efficiency.
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    ABSTRACT: The Enhanced Uplink or High Speed Uplink Packet Access (HSUPA) is designed to enable Internet applications in the uplink in UMTS networks. Its specification includes several new features which on the one hand increases throughput and decreases delay for the users, and on the other hand enables a better resource utilization on the network side. In this work, we explain the most prominent new features of the Enhanced Uplink and investigate their impact on the system and end-to-end performance with a special focus on different scheduling strategies. For the numerical results, a full-featured packet-level simulator has been implemented which enables the evaluation of UMTS networks with Rel. 99 users and Enhanced Uplink users in parallel.
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Weimin Xiao