Space-Time Block Coding (STBC) for Multiple Transmit Antennas over Time Selective Fading Channels
نویسندگان
چکیده
منابع مشابه
Space-Time Block Coding (STBC) for Multiple Transmit Antennas over Time Selective Fading Channels
A study of space-time block coding in analytical form-multiple input and multiple output (STBC-MIMO) system was done in various cases. Initially, a basic Alamouti scheme for encoding was illustrated. Then, the performance of proposed STBC-MIMO was studied under varying a number of transmitting antennas, varying number of receiving antennas, varying channels, various modulations and also at vary...
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Orthogonal space-time block coding is a transmit diversity method that has the potential to enhance the forward capacity. For a communication system with complex alphabet, full diversity and full code rate space-time codes are available only for two antennas, and for more than two antennas full diversity is achieved only when the code rate is lower than one. A quasi-orthogonal code could provid...
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In modern wireless communications, numerous diversity techniques are used to improve the performance of signal transmission over multiple channels. This paper focuses primarily on the evaluation of Quasi Orthogonal & Orthogonal Space-Time Block Codes (STBC) for a 4x2 system model. The paper proceeds by checking which of these two codes Orthogonal STBC or Quasi-orthogonal STBC, is better by eval...
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MIMO wireless technology has grown in the last few years. MIMO technology was mainly used for the analysis of channel capacity and also lead to the research for MIMO channel model, Space-Time coding. A signaling technique called Space-Time coding uses the MIMO structure to improve the robustness of communication link. Space–time block codes are designed to achieve the maximum diversity order fo...
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This paper considers the combination of space-time codes and macrodiversity to the cellular downlink. The antenna array used by the space-time code is comprised of the antennas of two or three geographically separated base stations. For ease of exposition and to reduce algorithmic complexity, we have restricted our attention in this paper to space-time block codes. Simulation results indicate a...
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ژورنال
عنوان ژورنال: International Journal of Computer Applications
سال: 2015
ISSN: 0975-8887
DOI: 10.5120/ijca2015907143