Resource Allocation in Multi-User MIMO-OFDM Relay-Enhanced System by Dynamic Programming

doi:10.13190/jbupt.201201.46.zhaobh

JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM ›› 2012, Vol. 35 ›› Issue (1): 46-50.doi: 10.13190/jbupt.201201.46.zhaobh

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Resource Allocation in Multi-User MIMO-OFDM Relay-Enhanced System by Dynamic Programming

ZHAO Bao-hua,LI Meng,QIANG Li,ZHOU Hao,CHI Xin-ze

1.School of Computer Science and Technology, University of Science and Technology of China, Hefei 230027, China; 2.State Key Laboratory of Networking and Switching Technology，Beijing University of Posts and Telecommunications, Beijing 100876, China; 3.Province Key Laboratory of Software in Computing and Communication, University of Science and Technology of China, Hefei 230027, China

Received:2011-10-18 Revised:2011-10-19 Online:2012-02-28 Published:2012-01-05

Abstract

Abstract:

A dynamic programmingbased resource allocation algorithm is proposed to improve the performance of resource allocation in multi-user multiple-input multiple-output orthogonal frequency division multiplexing multicast system. The algorithm tries to find the optimal total capacity and the respective resource allocating strategy of the system by dynamic programming in a global manner after partitioning the available power into schedulable equal pieces. No repeated calculations for sub-problems is required, this algorithm has a good time characteristics. Simulations show that the difference of the total system capacity between the proposed algorithm and the optimal yet less effective algorithm is within 0.10%.

Key words: orthogonal frequency division multiplexing, cooperative diversity, resource allocation

CLC Number:

TP393

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Resource Allocation in Multi-User MIMO-OFDM Relay-Enhanced System by Dynamic Programming

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