An Adaptive User Grouping and Subcarrier Allocation Algorithm for Grouped MC-CDMA Systems

Zhisheng NIU

IEICE TRANSACTIONS on Communications   Vol.E91-B    No.3    pp.947-950
Publication Date: 2008/03/01
Online ISSN: 1745-1345
DOI: 10.1093/ietcom/e91-b.3.947
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Wireless Communication Technologies
grouped MC-CDMA,  user grouping,  subcarrier allocation,  group diversity,  

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In MC-CDMA systems, subcarriers can be shared by different users. In this letter, we exploit the shared nature of subcarriers and propose a user grouping and subcarrier allocation algorithm for grouped MC-CDMA systems. The scheme aims at maximizing the total system throughput while providing bandwidth-fairness among groups. Simulation results are given to demonstrate the performance of the proposed algorithm in terms of sum capacity and per-user throughput.