协作蜂窝小区上行链路的中继选择与功率分配

doi:10.3969/j.issn.1001-2400.2012.03.005

Abstract

Abstract:

An assignment model of uplink resources, namely, power and relay, is proposed to minimize the total cost of energy-constrained cooperative networks. The model is a non-linear constraint, 0-1 integer programming problem. An adaptive resource allocation scheme is presented to solve it, which selects the relay with the lowest total cost for each source from the given relay set. A graphic-theory-based optimal power allocation algorithm is presented to minimize their total cost for a given source-relay pair. Simulation and analysis show that the scheme is suboptimal and can transmit more data than other algorithms and prolong network lifetime.

Key words: cooperative communications, resource allocation, amplify-and-forward, power allocation, relay selection, cost

CLC Number:

TN915.04

GUO Chaoping;HAN Kun;ZHANG Xiaolong; LI Yongzhao;ZHANG Hailin. Relay selection and power allocation for the uplink in cooperative cellular networks[J].J4, 2012, 39(3): 27-33+42.

References

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Relay selection and power allocation for the uplink in cooperative cellular networks

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