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双瑞利衰落下AP中继车际通信系统误符号率分析 被引量：2

Symbol-error-rate analysis in the AP-relayed inter-vehicular communication system over double-Rayleigh fading channels
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摘要 基于双瑞利衰落模型,对无线接入点AP中继的车际通信系统的差错性能展开研究.在采用放大转发中继策略的前提下,分析了端到端接收信噪比的统计特性,采用基于矩生成函数的方法得到了包含多种调制方式在内的系统平均误符号率的通用表达式.仿真表明,采用中继技术可以减小车际通信系统的平均误符号率;与M-PSK调制相比,系统采用差分相干M-DPSK会有2~3 dB的信噪比损失,具体数值取决于不同的信噪比和M值;相对于等功率分配方案,最佳功率分配方法可使协作车际通信系统获得2.4 dB的最大增益. The paper studies the error performance for the AP（access-point） relayed inter-vehicular communication（IVC） system based on the double-Rayleigh fading model.It analyzes the statistical properties of the receiving end-to-end signal-to-noise ratio（SNR） by assuming amplify-and-forward relaying strategy.A generalized expression for the average symbol error rate（ASER） for performance evaluation of various M-ary modulations is derived through MGF（moment generating function） based approach for the system.Simulation results show that the ASER decreases by applying the relaying technique in the IVC system.They also manifest that about 2～3 dB SNR losses of the system performance are induced by differentially coherent M-DPSK versus coherent M-PSK and they are dependent on specific values of SNR and M.Compared with the equal power allocation strategy,the optimal power allocation method improves error performance by 2.4 dB maximum gains for the cooperative IVC system.
作者 李兆训 李峰 仵国锋 胡捍英
机构地区 解放军信息工程大学
出处 《西安电子科技大学学报》 EI CAS CSCD 北大核心 2010年第5期947-952,970,共7页 Journal of Xidian University
基金 国家重大专项资助项目(2009ZX03003-008-02) 国家部委重大项目资助课题(STS082) 国家"863"计划资助项目(2009AA011504)
关键词 车际通信 中继 误符号率 双瑞利衰落 矩生成函数 最佳功率分配 inter-vehicular communication relay symbol error rate double-Rayleigh fading moment generating function optimal power allocation
分类号 TN929.5 [电子电信—通信与信息系统]
  • 相关文献

参考文献14

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二级参考文献9

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共引文献2

同被引文献23

  • 1SUN M, FENG W, LAI T, et al. GPS-based message broadcasting for inter-vehicular communication[C]//Proc of ICPP'2000. Toronto, Canada: 1EEE, 2000: 279-286.
  • 2BUCCIO P, MASALA E, KAWAGUCH1 N, et al.Performance evaluation of H. 264 video streaming over inter-vehicular 802.11 Ad hoc networks[C]//Proc of P1MRC'05. Berlin, Germany: 1EEE, 2005:1936-1940.
  • 3OTT J, KUTSCHER D. The drive-thru architecture: WLAN-based internet access on the road[C]//Proc of VTC-Spring'2004. Milan, Italy: IEEE, 2004: 2615-2622.
  • 4KOIKE T. Capacity improvement of multihop inter-vehicle communication networks by STBC cooperative relaying[J] IE1CE Trans Commun, 2005, 88(9): 3546-3553.
  • 5KOVACS 1 Z, EGGERS P, OLESEN K, et al. Investigations of outdoor-to-indoor mobile-to-mobile radio communication channels[C]//Proc of VTC Spring'2002. Birmingham, End, land: IEEE. 2002: 430-434.
  • 6KOVACS 1 Z. Radio channel characterization for private mobile radio systems: mobile-to-mobile radio link investi- gation[D]. Aalborg: Aalborg University, 2002.
  • 7CHELLI A, PATZOLD M. The impact of fixed and moving scatterers on the statistics of MIMO vehicle-to-vehicle channels[C]//Proc of VTC-Spring'2009. Barcelona, Spain: 1EEE, 2009: 1-6.
  • 8LI Zhao-xun, J1A Long-zhen, LI Feng, et al. Outage performance analysis in relay-assisted inter-vehicular communications over double-Rayleigh fading channels[C] //Proe ofCMC'2010. Shenzhen, China: IEEE, 2010.
  • 9ILHAN H, ALTUNBAS I, UYSAL M. Cooperative diversity for relay-assisted inter-vehicular communication [C]//Proc of VTC-Spring'2008. Singapore: IEEE 2008: 605-609.
  • 10SALO J, EL-SALLABI H M, VAINIKAINEN P. Distribution of the product of independent Rayleigh random variables[J]. IEEE Trans in Antennas and Propa, 2006, 54(2): 639-643.

引证文献2

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西安电子科技大学学报
2010年 第5期

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