NDLI: An Orthogonal Resource Allocation Algorithm to Improve the Performance of OFDMA-Based Cellular Wireless Systems Using Relays

Content Provider	IEEE Xplore Digital Library
Author	Woonsik Lee Minh-Viet Nguyen Jeonghan Jeong Byungjik Keum Hwang Soo Lee
Copyright Year	2008
Description	Author affiliation: KAIST, Daejeon (Woonsik Lee; Minh-Viet Nguyen; Jeonghan Jeong; Byungjik Keum; Hwang Soo Lee)
Abstract	For the next generation wireless communication systems, inter-cell interference (ICI) is the main source of performance degradation in mobile stations, especially, cell-edge mobile stations. This paper presents a novel orthogonal resource allocation algorithm (ORAA) for our proposed system architecture, termed the OFDMA-based cellular wireless system architecture using relays (OCWSAR). By using relays to cover the cell-edge areas and a robust algorithm with priority resource allocation, the ICI of the system is significantly reduced, while the sector frequency reuse factor is maintained at 1. A system-level simulator is developed in a multi-cell/multi-user environment, where the effect of the proposed ORAA can be evaluated precisely in the presence of inter-cell interference (ICI). Furthermore, the simulation results assure that the new system architecture with the associated algorithm yield higher SINR and data throughput for cell-edge users.
Starting Page	917
Ending Page	921
File Size	959089
Page Count	5
File Format	PDF
ISBN	9781424414567
e-ISBN	9781424414574
DOI	10.1109/ccnc08.2007.213
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-01-10
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Resource management Relays Interference Signal to noise ratio Wireless communication Degradation Robustness Radio spectrum management Throughput Frequency division multiplexing
Content Type	Text
Resource Type	Article

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