A Low-Cost Cooperative Strategy for Cellular Controlled Short-Range Communication Systems

Han HAN  Hao WANG  Xiaokang LIN  

IEICE TRANSACTIONS on Communications   Vol.E95-B   No.4   pp.1471-1474
Publication Date: 2012/04/01
Online ISSN: 1745-1345
DOI: 10.1587/transcom.E95.B.1471
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Terrestrial Wireless Communication/Broadcasting Technologies
cooperative communications,  cellular controlled short-range communication (CCSRC) systems,  cellular systems,  channel state information (CSI),  

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This letter is concerned with cellular controlled short-range communication (CCSRC) systems, which can provide a significant performance gain over the traditional cellular systems as shown in the literature. However, to obtain such a gain, CCSRC systems need perfect channel state information (CSI) of all users and the complexity of setting up the optimal cooperative clusters is factorial with respect to the number of potentially cooperative users, which is very unrealistic in practical systems. To solve this problem, we propose a novel cooperative strategy, where CCSRC systems only need the distances between all user pairs and the complexity of setting up the cooperative clusters is relatively low. Simulation results show that the performance of the proposed strategy is close to optimal.