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一种新颖的超宽带无线通信多址接入方式的研究 被引量:2

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摘要 多址干扰是限制超宽带(UWB)系统容量的主要原因。本文介绍了一种混合式多址接入方案:即采用直接序列扩频与固定跳时扩频相结合的多址接入机制,称之为DS-BPSK/固定THMA)。由于固定跳时码的存在,不同用户脉冲的碰撞概率被有效地减小。同时,即使发生脉冲碰撞,利用代表数据符号的直接序列PN码良好的自相关和互相关特性,将进一步抑制多址干扰影响。性能分析和仿真结果表明DS-BPSK/固定TH的UWB系统比传统的通过脉冲调制实现的跳时多址接入UWB系统具有更大用户容量。
出处 《通信学报》 EI CSCD 北大核心 2003年第B11期130-135,共6页 Journal on Communications
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参考文献7

  • 1MTTHEW L.System considerations for ultra wideband wireless networks[A]. IEEE Proc RAWCON[C]. 2001.
  • 2SCHOLTZ A. Multiple access with time hopping impulse modulation[A]. Proc MILCOM'93[C]. 1993.
  • 3WIN Z, SCHOLTZ A. Ultra-wide bandwidth time-hopping spread-spectrum impulse radio for wireless multiple-access communtcations[J]. IEEE Transactions on Communications, 2000, 48(4): 453-468.
  • 4SONAYAZULU V. Multiple access performance in UWB systems using time hopping Vs direct sequence spreading[A].IEEE Wireless Communications and Networking Conference[C]. 2002.
  • 5FOERSTER L The performance of a direct-sequence spread ultra wideband system in the presence of multipath,narrowband interference, and multiuser interference[A]. IEEE Conference on Ultra Wideband Systems and Technologies[C]. 2002. 176-179.
  • 6朱近康.扩展频谱通信与应用[M].合肥:中国科技大学出版社,1993.
  • 7PROAKIS J G. Digital Commnnications[M]. 4th ed Beijing: Publishing House of Electronics Industry, 2001.432-537.

同被引文献40

  • 1朱雪田,邓天乐,周正.基于正交小波的超宽带无线通信多址接入方式——波分多址[J].北京邮电大学学报,2004,27(4):13-17. 被引量:28
  • 2.[EB/OL].http://it. sohu. com/2004/05/24/83/article220228311. shtml,.
  • 3.[EB/OL].http://info. broadcast. hc360. com/HTML/001/002/013/002/54325.htm,.
  • 4.[EB/OL].http://www. mc21st. com/fashion/techwin/mobilecom/2003/k1010-16. btm,.
  • 5.[EB/OL].http://it.sohu.c om/2004/05/26/90/article220259071. html,.
  • 6.[EB/OL].http ://www. uwbinsider. com/applications/1-2-1ow-data-rate. html,.
  • 7Ho M, Taylor L, Aiello G R. UWB architecture for wireless video networking[C]. Proc. IEEE Int. Conf. Consumer Electronics,2001. 18-19.
  • 8Fontana R, Ameti A, Richley E. Recent advances in ultra wideband communications systems[C]. IEEE Conf. UWB Systems and Technologies Dig, 2002. 129- 133.
  • 9Weisenhorn M, Hirt W. Performance of binary antipodal signaling over the indoor UWB MIMO channel[J]. Proc. ICC 2003, paper CT 19-2, 2003.
  • 10W Hirt. Ultra-Wideband Radio Technology: Overview and Future Research [J]. Comp. Commun., 2003. 26(1): 46-52.

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