Performance enhancement of DS-CDMA system using overlapping sectors with interference avoidance

被引：0
|
作者：
Ng, BK [1 ]
Sousa, E [1 ]
机构：
[1] Univ Toronto, Dept Elect & Comp Engn, Toronto, ON, Canada
来源：
2000 IEEE SIXTH INTERNATIONAL SYMPOSIUM ON SPREAD SPECTRUM TECHNIQUES AND APPLICATIONS, PROCEEDINGS, VOL 1 AND 2: COMMUNICATIONS FOR A NEW MILLENNIUM | 2000年
关键词：
D O I：
暂无
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：
A cellular system with overlapping sectors is proposed to enhance system performance through interference avoidance. In such system, users lie within the coverage of more than one sector, yet each user only chooses one sector for signal transmission and reception. The choices of sectors among different users affect the interference level experienced by others. It is shown in this paper that their mutual interference is minimized by choosing good sector combination. We investigate the potential benefits of proposed technique in two scenarios: orthogonal and non-orthogonal CDMA system. In the former case, spreading code allocation combined with sector selection reduces the required number of code to support all users compared to conventional non-overlapping sector system. Far non-orthogonal CDMA system, the enhancement takes the form of multiple access interference reduction. Simulations results show that its improvement is pronounced and can be further enhanced by increasing the number of overlapping sectors.
引用
收藏
页码：88 / 92
页数：5
相关论文
共 50 条
  • [41] Interference suppression factor in DS-CDMA systems
    Adachi, F
    Kim, DK
    ELECTRONICS LETTERS, 1999, 35 (25) : 2176 - 2177
  • [42] Optimisation of soft interference cancellation for DS-CDMA
    Renucci, PG
    Woerner, BD
    ELECTRONICS LETTERS, 1998, 34 (08) : 731 - 733
  • [43] On multirate DS-CDMA schemes with interference cancellation
    Johansson, Ann-Louise
    Svensson, Arne
    Wireless Personal Communications, 1999, 9 (01): : 1 - 29
  • [44] ANALYSIS OF A SIMPLE SUCCESSIVE INTERFERENCE CANCELLATION SCHEME IN A DS-CDMA SYSTEM
    PATEL, P
    HOLTZMAN, J
    IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS, 1994, 12 (05) : 796 - 807
  • [45] Performance of DS-CDMA system with M-ary orthogonal modulation and successive interference cancellation
    Xue, GQ
    Gunawan, E
    Dubey, VK
    Soh, CB
    ICICS - PROCEEDINGS OF 1997 INTERNATIONAL CONFERENCE ON INFORMATION, COMMUNICATIONS AND SIGNAL PROCESSING, VOLS 1-3: THEME: TRENDS IN INFORMATION SYSTEMS ENGINEERING AND WIRELESS MULTIMEDIA COMMUNICATIONS, 1997, : 840 - 843
  • [46] Nonlinear parallel interference cancellation with partial cancellation for a DS-CDMA system
    Cho, BY
    Lee, JH
    IEICE TRANSACTIONS ON COMMUNICATIONS, 2000, E83B (09) : 2141 - 2146
  • [47] DS-CDMA system with symbol ranking type interference canceller (SRIC)
    Uesugi, M
    Kato, O
    Homma, K
    IEICE TRANSACTIONS ON COMMUNICATIONS, 1998, E81B (07) : 1401 - 1408
  • [48] Turbo soft interference cancellation for coded asynchronous ds-cdma system
    Mohammad-Khani, G
    Cances, J
    Meghdadi, V
    2001 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH, AND SIGNAL PROCESSING, VOLS I-VI, PROCEEDINGS: VOL I: SPEECH PROCESSING 1; VOL II: SPEECH PROCESSING 2 IND TECHNOL TRACK DESIGN & IMPLEMENTATION OF SIGNAL PROCESSING SYSTEMS NEURALNETWORKS FOR SIGNAL PROCESSING; VOL III: IMAGE & MULTIDIMENSIONAL SIGNAL PROCESSING MULTIMEDIA SIGNAL PROCESSING - VOL IV: SIGNAL PROCESSING FOR COMMUNICATIONS; VOL V: SIGNAL PROCESSING EDUCATION SENSOR ARRAY & MULTICHANNEL SIGNAL PROCESSING AUDIO & ELECTROACOUSTICS; VOL VI: SIGNAL PROCESSING THEORY & METHODS STUDENT FORUM, 2001, : 4035 - 4035
  • [49] MULTIPLE-ACCESS INTERFERENCE OF GOLD CODES IN A DS-CDMA SYSTEM
    Wojuola, Olanrewaju B.
    Mneney, Stanley H.
    SAIEE AFRICA RESEARCH JOURNAL, 2015, 106 (01): : 4 - 10
  • [50] DS-CDMA CAPACITY ENHANCEMENT WITH ADAPTIVE ANTENNAS
    TSOULOS, GV
    BEACH, MA
    SWALES, SC
    ELECTRONICS LETTERS, 1995, 31 (16) : 1319 - 1320
12345