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PERFORMANCE ANALYSIS OF TAS/MRC-BASED SCHEME IN TIME-VARYING RAYLEIGH FADING CHANNELS
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作者 Chen Mingxue Xu Chengqi 《Journal of Electronics(China)》 2010年第2期151-156,共6页
This paper investigates a Multiple-Input Multiple-Output (MIMO) scheme combining Transmit Antenna Selection and receive Maximal-Ratio Combining (TAS/MRC) in time-varying Rayleigh fading channels. We first present new ... This paper investigates a Multiple-Input Multiple-Output (MIMO) scheme combining Transmit Antenna Selection and receive Maximal-Ratio Combining (TAS/MRC) in time-varying Rayleigh fading channels. We first present new closed-form expressions for optimal received Signal-to-Noise Ratio (SNR),which is expressed in polynomial form. These are used to analyze ergodic capacity,outage probability and Bit Error Rate (BER) of TAS/MRC systems. Numerical results are presented to validate the theoretical analysis. 展开更多
关键词 Multiple-Input Multiple-Output (MIMO) Transmit antenna Selection and receive Maximal-Ratio Combining (TAS/MRC) Ergodic capacity Outage probability
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A+P一体化5G设备的使用探讨
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作者 谢涵 《电信快报》 2021年第8期29-33,共5页
随着5G时代的到来,各地5G基站的建设如火如荼,同时5G网络建设存在工程投资大、5G天线部署需要关注覆盖性能及部署周期等问题。文章针对在利旧基站建设过程中存在的天面空间受限、5G低挂高、铁塔风荷载受限等问题,对A+P(Combination of a... 随着5G时代的到来,各地5G基站的建设如火如荼,同时5G网络建设存在工程投资大、5G天线部署需要关注覆盖性能及部署周期等问题。文章针对在利旧基站建设过程中存在的天面空间受限、5G低挂高、铁塔风荷载受限等问题,对A+P(Combination of active and passive antennas)一体化设备在中国电信和中国联通的5G基站建设中的使用方式提出一些建议,根据A+P设备在不同建设场景来进行工程建设、投资分析,说明A+P一体化设备的较高实用性。 展开更多
关键词 5G覆盖 天线 基站天面空间 A+P(Combination of active and passive antennas)
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