Distributed Resource Allocation for Multiuser OFDM Wireless Systems

被引：0
|
作者：
Zhang, Yonghong [1 ]
Leung, Cyril [1 ]
机构：
[1] Univ British Columbia, Dept Elect & Comp Engn, Vancouver, BC V6T 1Z4, Canada
来源：
PM2HW2N'08: PROCEEDINGS OF THE THIRD ACM INTERNATIONAL WORKSHOP ON PERFORMANCE MONITORING, MEASUREMENT, AND EVALUATION OF HETEROGENEOUS WIRELESS AND WIRED NETWORKS | 2008年
关键词：
Power allocation; multiuser OFDM; OFDMA; multidimensional knapsack problem; MDKP;
D O I：
10.1145/1454630.1454647
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
A distributed power and bit allocation algorithm for multiuser OFDM-based wireless systems, in which each subcarrier can be shared by multiple users, would be useful in multi-cell as well as ad hoc systems. In this paper, we first propose a centralized greedy algorithm for a single carrier system which involves the solution of a nonlinear multidimensional knapsack problem (MDKP). Using the result from this algorithm as a guide, we then design a distributed algorithm that can rapidly yield a near-optimal solution.
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页码：112 / 116
页数：5
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