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Joint subcarrier power allocation and equal BER power control for uplink MC-CDMA systems

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3 Author(s)
Yizhi Feng ; Sch. of Electron. & Inf. Eng., South China Univ. of Technol., Guangzhou, China ; Yaorong Lin ; Hongjiang Wang

In this paper, we consider joint subcarrier power allocation and equal bit-error-rate (BER) power control (PC) for the uplink multicarrier code division multiple access (MC-CDMA) systems with MMSE successive interference cancellation (MMSE-SIC). We first propose a novel subcarrier power adaptive allocation scheme which maintains the constant BER single user bound (SUB) and then combine it with equal BER PC for the uplink MC-CDMA systems with MMSE-SIC. The joint scheme is compared with equal BER PC without subcarrier power adaptation for the uplink MC-CDMA systems with MMSE-SIC. Numerical results show that the joint scheme can achieve a much lower BER SUB and a much better BER performance.

Published in:

Communications Technology and Applications, 2009. ICCTA '09. IEEE International Conference on

Date of Conference:

16-18 Oct. 2009

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