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

页码：1226 / 1236

页数：11