On the Performance of Orthogonal Polyphase Sequences in Asynchronous CDMA Systems

被引：0

作者：

AlSusa, E. ^{[1
]}

ElKalagy, A. ^{[1
]}

机构：

[1] Univ Manchester, MACS Grp, Sch Elect & Elect Engn, Manchester M60 1QD, Lancs, England

来源：

2009 INTERNATIONAL CONFERENCE ON SOFTWARE, TELECOMMUNICATIONS AND COMPUTER NETWORKS | 2009年

关键词：

DYNAMIC SIGNATURE ASSIGNMENT; INTERFERENCE; COMMUNICATION;

D O I：

暂无

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

In this paper we study the performance of orthogonal poly-phase (OPP) sequences on the uplink of asynchronous code division multiple access (CDMA) systems. We explore the application of dynamic code allocation (DCA) of OPP sequences with the objective to minimize multiple access interference (MAI), arising due to the asynchronous transmission, and enhance the system's overall performance. Two DCA criteria are analyzed and compared. Finally, for the sake of completeness, the performance of OPP codes with and without DCA is compared to that of Walsh-Hadamard (WH) orthogonal codes and complex pseudorandom (PN) sequences for the cases of conventional rake-receiver detection as well as pre-raked transmission. It will be shown that OPP codes can provide superior performance, especially with pre-rake transmission, to both WH and PN sequences even under sever asynchronous and multipath fading conditions..

引用

页码：196 / 200

页数：5

共 50 条

[21] Optimal signature sequences for asynchronous CDMA systems with fixed signal delays
Stanczak, S
Boche, H
5TH INTERNATIONAL SYMPOSIUM ON WIRELESS PERSONAL MULTIMEDIA COMMUNICATIONS, VOLS 1-3, PROCEEDINGS, 2002, : 1147 - 1151
[22] On the construction of spreading sequences for asynchronous CDMA systems with linear multiuser detection
Elders-Boll, H
Schotten, HD
1998 IEEE INTERNATIONAL SYMPOSIUM ON INFORMATION THEORY - PROCEEDINGS, 1998, : 122 - 122
[23] New Perfect Polyphase Sequences and Mutually Orthogonal ZCZ Polyphase Sequence Sets
Zeng, Fanxin
IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES, 2009, E92A (07) : 1731 - 1736
[24] Uplink performance of asynchronous multicode multicarrier CDMA systems
Fu, HY
Mark, JW
PIMRC 2003: 14TH IEEE 2003 INTERNATIONAL SYMPOSIUM ON PERSONAL, INDOOR AND MOBILE RADIO COMMUNICATIONS PROCEEDINGS, VOLS 1-3 2003, 2003, : 2343 - 2347
[25] CONSTRUCTION AND ASSIGNMENT OF ORTHOGONAL SEQUENCES AND ZERO CORRELATION ZONE SEQUENCES FOR APPLICATIONS IN CDMA SYSTEMS
Xie, Chunlei
Sun, Yujuan
ADVANCES IN MATHEMATICS OF COMMUNICATIONS, 2020, 14 (01) : 1 - 9
[26] A low complexity CDMA multiuser detector - Orthogonal decision-feedback detector for asynchronous CDMA systems
Chen, HH
1998 IEEE INTERNATIONAL SYMPOSIUM ON INFORMATION THEORY - PROCEEDINGS, 1998, : 36 - 36
[27] Performance of asynchronous orthogonal multicarrier CDMA system in frequency selective fading channel
Gui, X
Ng, TS
IEEE TRANSACTIONS ON COMMUNICATIONS, 1999, 47 (07) : 1084 - 1091
[28] Performance of asynchronous orthogonal multicarrier CDMA system in frequency selective fading channel
School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore 639798, Singapore
不详
IEEE Trans Commun, 7 (1084-1091):
[29] Performance analysis of forward link DS-CDMA systems using random and orthogonal spreading sequences
Choi, JW
Lee, YH
IEICE TRANSACTIONS ON COMMUNICATIONS, 2004, E87B (08) : 2195 - 2202
[30] Performance analysis of forward link DS-CDMA systems using random and orthogonal spreading sequences
Choi, JW
Lee, YH
Kim, YH
2001 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS, VOLS 1-10, CONFERENCE RECORD, 2001, : 1446 - 1450

← 1 2 3 4 5 →