Fractional-Delay-Resilient Receiver Design for Interference-Free MC-CDMA Communications Based on Complete Complementary Codes

被引：58
|
作者：
Liu, Zilong [1 ]
Guan, Yong Liang [1 ]
Chen, Hsiao-Hwa [2 ]
机构：
[1] Nanyang Technol Univ, Sch Elect & Elect Engn, Singapore 639798, Singapore
[2] Natl Cheng Kung Univ, Dept Engn Sci, Tainan 701, Taiwan
来源：
IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS | 2015年 / 14卷 / 03期
关键词：
Complete complementary codes (CCC); multicarrier CDMA (MC-CDMA); interference-free performance; fractional-delay-resilient; REED-MULLER CODES; ISI CHANNEL ESTIMATION; MEAN POWER-CONTROL; MULTICARRIER CDMA; SEQUENCES; SETS;
D O I：
10.1109/TWC.2014.2365467
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Complete complementary codes (CCC) refer to a set of two-dimensional matrices, which have zero non-trivial aperiodic auto-and cross-correlation sums. A modern application of CCC is in interference-free multicarrier code-division multiple-access (MC-CDMA) communications. In this paper, we first show that in asynchronous "fractional-delay" uplink channels, CCC-MC-CDMA systems suffer from orthogonality loss, which may lead to huge interference increase when a conventional correlator based receiver is deployed. Then, by exploiting the correlation properties of CCC, we present a fractional-delay-resilient receiver which is comprised of a chip-spaced correlating array. Analysis and simulations validate the interference-free achievability of the proposed CSCA receiver in strong interference scenarios.
引用
收藏
页码：1226 / 1236
页数：11
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