Resource Allocation in Wireless Networks with Multiple Relays

被引：6
|
作者：
Bakanoglu, Kagan [1 ]
Tomasin, Stefano [2 ]
Erkip, Elza [1 ]
机构：
[1] NYU, Polytech Inst, Dept Elect & Comp Engn, Brooklyn, NY 11201 USA
[2] Univ Padua, Dept Informat Engn, I-35131 Padua, Italy
来源：
2008 42ND ASILOMAR CONFERENCE ON SIGNALS, SYSTEMS AND COMPUTERS, VOLS 1-4 | 2008年
基金：
美国国家科学基金会;
关键词：
D O I：
10.1109/ACSSC.2008.5074671
中图分类号：
TP39 [计算机的应用];
学科分类号：
081203 ; 0835 ;
摘要：
A cooperative network where transmission between two nodes that have no direct link. Nit assisted by many relays is considered. We assume a broadband system, such as OFDM, modeled by multiple parallel Gaussian subchannels between the source and each relay, and also between each relay and the destination. We formulate the optimization problem for joint power and subchannel allocation under a short term per-node power constraint to maximize the instantaneous total transmission rate between the source and the destination. To solve this optimization problem, first we find the optimal power allocation for a given subchannel allocation. Then we focus on a greedy algorithm that jointly allocates subchannels and power. Simulation results reveal that our proposed algorithm results in rates close in the optimum allocation.
引用
收藏
页码：1501 / +
页数：2
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