The cdma2000 1xEV-DO mobile communication system provides broadcast and multicast services(BCMCS) to meet an increasing demand for multimedia data services.Single frequency network(SFN) is recognized as an effective w...The cdma2000 1xEV-DO mobile communication system provides broadcast and multicast services(BCMCS) to meet an increasing demand for multimedia data services.Single frequency network(SFN) is recognized as an effective way to improve the spectral efficiency of the BCMCS system.To improve the coverage and the data rate of the BCMCS users,an interference cancellation algorithm based on macro diversity is introduced in this paper.The performance of BCMCS in CDMA2000 EV-DO networks under the condition of SFN is evaluated.The simulation results show a significant improvement in bit error ratio(BER) while quantitatively validating the efficiency of our approach.展开更多
切换是移动网络最重要的技术之一,直接影响着通信系统的整体性能。研究了IEEE 802.16e系统基于CINR(Carrier to Interference+Noise Ratio,载波干扰噪声比)的软切换机制,提出绝对门限和相对门限相结合的软切换触发和判决算法。通过仿真...切换是移动网络最重要的技术之一,直接影响着通信系统的整体性能。研究了IEEE 802.16e系统基于CINR(Carrier to Interference+Noise Ratio,载波干扰噪声比)的软切换机制,提出绝对门限和相对门限相结合的软切换触发和判决算法。通过仿真研究了各参数对平均切换次数、切换损耗概率和网络资源利用率的影响,并在这些系统性能之间寻求折中。展开更多
文摘The cdma2000 1xEV-DO mobile communication system provides broadcast and multicast services(BCMCS) to meet an increasing demand for multimedia data services.Single frequency network(SFN) is recognized as an effective way to improve the spectral efficiency of the BCMCS system.To improve the coverage and the data rate of the BCMCS users,an interference cancellation algorithm based on macro diversity is introduced in this paper.The performance of BCMCS in CDMA2000 EV-DO networks under the condition of SFN is evaluated.The simulation results show a significant improvement in bit error ratio(BER) while quantitatively validating the efficiency of our approach.
文摘切换是移动网络最重要的技术之一,直接影响着通信系统的整体性能。研究了IEEE 802.16e系统基于CINR(Carrier to Interference+Noise Ratio,载波干扰噪声比)的软切换机制,提出绝对门限和相对门限相结合的软切换触发和判决算法。通过仿真研究了各参数对平均切换次数、切换损耗概率和网络资源利用率的影响,并在这些系统性能之间寻求折中。
