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计算机工程 ›› 2008, Vol. 34 ›› Issue (24): 228-229.doi: 10.3969/j.issn.1000-3428.2008.24.079

• 多媒体技术及应用 • 上一篇    下一篇

基于宽带无线多媒体系统的随机接入方案

陆晔顼1，戎 璐1，刘 琦2   

  1. (1. 中国科学院上海微系统与信息技术研究所上海无线通信研究中心，上海 200050；2. 复旦大学信息科学与工程学院，上海 200433)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2008-12-20 发布日期:2008-12-20

Random Access Scheme Based on Broadband Wireless Multimedia System

LU Ye-xu1, RONG Lu1, LIU Qi2   

  1. (1. Shanghai Research Center of Wireless Communication, Shanghai Institute of Microsystem & Information Technology of Chinese Academy of Sciences, Shanghai 200050; 2. School of Information Science and Engineering, Fudan University, Shanghai 200433)
  • Received:1900-01-01 Revised:1900-01-01 Online:2008-12-20 Published:2008-12-20

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摘要： 根据宽带无线多媒体系统的特点，提出一种适用于该系统的随机接入方案。该方案能有效复用多个随机接入信号，提高频谱利用率，同时实现了具有较低复杂度的单门限检测方法，使系统在低误检概率下获得较好的检测性能。实验结果表明，该方案是可行的。

关键词: 随机接入, CAZAC序列, 广义多载波

Abstract: According to the characteristic of Broadband Wireless Multimedia(BWM) system, a random access scheme based on BWM system is proposed, which can multiplex several random access signals effectively, and promote the operating factor of frequency spectrum. Moreover, the detection method of single threshold with low complexity is also implemented, which makes the system achieve better detection performance under low false detection probability. Experimental results show this scheme is feasible.

Key words: random access, CAZAC sequences, Generalized Multi-Carrier(GMC)

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