Group-Mode Hopping for Collision Mitigation in Orthogonal Code-Hopping Multiplexing

被引：3
|
作者：
Moon, Sung Ho [1 ,2 ]
Park, Suwon [3 ]
Kwon, Jae Kyun [4 ]
Kim, Junsu [5 ]
Sung, Dan Keun [5 ]
机构：
[1] LG Elect Co Ltd, Seoul 150721, South Korea
[2] Stanford Univ, Stanford, CA 94305 USA
[3] Kwangwoon Univ, Dept Elect & Commun Engn, Seoul 139701, South Korea
[4] Yeungnam Univ, Dept Elect Engn & Comp Sci, Kyongbuk 712749, South Korea
[5] Korea Adv Inst Sci & Technol, Sch Elect Engn & Comp Sci, Taejon 305701, South Korea
来源：
IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY | 2009年 / 58卷 / 07期
关键词：
Code collision; code division multiple access (CDMA); group mode; hopping allocation; orthogonal code-hopping multiplexing (OCHM); RATIO LLR CONVERSION; CDMA; ASSIGNMENT;
D O I：
10.1109/TVT.2009.2017547
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：
Orthogonal code-hopping multiplexing (OCHM) is a statistical multiplexing scheme designed to increase the number of allowable downlink channels in code-division multiple-access (CDMA) systems. OCHM makes it possible to use orthogonal code resources more efficiently than the conventional dedicated codeword allocation/multiplexing schemes in cdma2000 and wideband DMA(WCDMA) systems. Collision-allowable hopping in the OCHM system yields a statistical multiplexing gain. However, collisions may degrade the bit error rate (BER) performance. A group-mode hopping scheme is proposed as a collision mitigation scheme for OCHM. The performance of the proposed scheme is evaluated using numerical analysis and simulations.
引用
收藏
页码：3830 / 3834
页数：5
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