標題: Non-Cooperative Multi-Cell Resource Allocation and Modulation Adaptation for Maximizing Energy Efficiency in Uplink OFDMA Cellular Networks
作者: Ho, Chieh Yuan
Huang, Ching-Yao
電機學院
College of Electrical and Computer Engineering
關鍵字: Resource allocation;energy efficiency;OFDMA
公開日期: Oct-2012
摘要: We address the optimization problem of maximizing uplink energy efficiency, defined as sum of users bits-per-joule (bpj), in a multi-cell multi-user OFDMA network. Firstly, we propose a non-cooperative distributed scheme, in which mobile stations (MS) in different cells with given subcarrier assignment (SA) adjust the modulation and transmit power non-cooperatively, to optimize its own bpj. An advanced noncooperative BS-controlled resource allocation scheme, in which the base station in each cell jointly performs SA, modulation adaptation, and power control for MSs in a non-cooperative manner, is proposed. Numerical results illustrate the tradeoff between energy and spectral efficiency, and show the proposed scheme makes great improvement on bpj with marginal loss of throughput as compared to other conventional scheme.
URI: http://dx.doi.org/10.1109/WCL.2012.061212.120239
http://hdl.handle.net/11536/133694
ISSN: 2162-2337
DOI: 10.1109/WCL.2012.061212.120239
期刊: IEEE WIRELESS COMMUNICATIONS LETTERS
Volume: 1
Issue: 5
起始頁: 420
結束頁: 423
Appears in Collections:Articles