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Space Time Block Codes For MIMO systems

Author(s):

Wamik Majeed , ICL IET, SOUNTLI; Seema Singh, ICL IET, SOUNTLI

Keywords:

Multi Input Multi Output, Diversity, Space-time block coding, spatial multiplexing, Alamouti Plan, Flat Fading, Matlab Simulink

Abstract

Multi Input Multi Output (MIMO) system multiple antennas are put to use at the transmitter section and the receiver section. By a single radio channel, MIMO transmits and receives two or more data streams. Then the system can discharge two or more times the data rate per channel without any additional transmit power or bandwidth. The put together of multiple antennas at the transmitter mixed with the help of advanced algorithms which are based on digital signal processing and the receiver yields expressive advantage in terms of diversity and capacity. spatial multiplexing and Space-time block coding and are MIMO based techniques that provide link quality and high magnitude in the system. SM and STBC can be combined to give a transmission scheme that will give a maximum average data rate over the MIMO channel and minimize the order of diversity for each stream. The basic parameters that describe the quality of wireless link include Speed, Range and Reliability. There is always a trade-off to achieve all three qualities. But an attractive candidate in this regard is MIMO system which can increase all of the above, examine and note the similarities or differences of, to single antenna system. MIMO exploits multipath rather than moderate it. Space Time Block Code (STBC) is a special form of MIMO and originally employed for 2 transmit and 1 receive antenna by Alamouti under flat fading circumstances.

Other Details

Paper ID: IJSRDV3I70449
Published in: Volume : 3, Issue : 7
Publication Date: 01/10/2015
Page(s): 713-717

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