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Defects_TD2SCDMA_Standards
- 从智能天线的工作原理出发说明使用智能天线时很难实现小区的分扇区应用、多频点天线公 用,因此可以证明智能天线还不是一项可供商用的实用技术 考虑相邻小区/扇区时隙的不对称分 配所产生的相邻小区/扇区收发干扰时,可以证明上、下行时隙实质上是不能按需分配的。3 G使 用的频段是2 GHz,具有传播衰落大、穿透能力差、不易做大范围覆盖。TD2SCDMA标准很难提供3 G标准所规定的在车载、步行、静止环境下分别达到144 kbit/ s、384 kbit/ s和2 048 kbit/ s的无
InitialPerformanceEvaluationofDFTSpreadOFDMBasedS
- Abstract—In this paper we present an initial performance evaluation of the 3GPP UTRA Long Term Evolution (UTRA LTE) uplink with baseline settings. The performance results are obtained from a detailed UTRA LTE uplink link level simulator suppo
54379
- We investigate the case of independent Rayleigh faded paths between antenna elements and find that with high probability extraordinary capacity is available. Compared to the baseline n = 1 case, which by Shannon’s classical formula scales as one
DWellsThesis
- This thesis presents simulation data on array operation in wideband communication systems. It is shown that array structures with closer inter-element spacing outperform structures with much larger inter-element spacing. It is also shown that cir
Antenna_Theory_and_Design_0471449962
- Antenna Theory and Design, Robert S. Elliott, 2003
dual-bandPIFAantenna
- 本论文内容主要包括：设计了一种双频PIFA天线，该天线工作在2.4GHz和5.2GHz。通过加载F形槽和短路探针使天线工作在5.2GHz，通过加载阶梯形槽使天线工作在2.4GHz。具体先理论分析了倒F天线，进行了参数估算。而后使用Designer软件对天线进行仿真，分析了一些参数对该天线性能的影响。最后，得出了该天线最优的一组参数。在此参数下，天线的阻抗带宽在低频段达到130MHz(5.01～5.38GHz)，在高频段达到天370MHz(5.01～5.38GHz)。-This paper sho
Microstrip-Antenna
- Design and Analysis of Wide-Band Slotted Microstrip Patch Antenna for S-Band
ofdm-tx-rx
- Abstract Orthogonal frequency division multiplexing (OFDM) is becoming the chosen modulation technique for wireless communications. OFDM can provide large data rates with sufficient robustness to radio channel impairments. Many research centers
LTEMIMOOFDM111
- 宽带无线通信是信息化社会发展的助推器，它正在改变人们的生活方式，人 们将可以在任何时候、任何地点享受数字冲浪、视频点播、时频会议等新的时髦。 MIMO系统的信道容量与发射端和接收端的最小天线数成线性关系，这使MIMO技 术成为LTE、B3G和未来4G系统中最有前途的技术之一。-Broadband wireless communication is the booster for the development of information society, it is changin
Reciever_Diversity_AWGN
- Multiple antenna’s at the receiver (aka receive diversity) improves the bit error rate (BER) performance. In this post, let us try to understand the BER improvement with receive diversity.
Antenna-and-EM-modeling-with-MATLAB-(Makarov-S.N.
- This text uses the standard Matlab package in order to model and optimize radiation and scattering of basis RF and wireless communication antennas and microwave structures.
Antenna-theory-basics
- Basics on the Antenna and Maxwell s equations