Tight Bounds on SINR with ZFBF and Feedback
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International Journal of Computer Trends and Technology (IJCTT) |  |
| © - November Issue 2013 by IJCTT Journal | ||
| Volume-5 Issue-4 |
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| Year of Publication : 2013 | ||
| Authors :Burra Rekha , Sanjay Madupu |
Burra Rekha , Sanjay Madupu"Tight Bounds on SINR with ZFBF and Feedback"International Journal of Computer Trends and Technology (IJCTT),V5(4):160-169 November Issue 2013 .ISSN 2231-2803.www.ijcttjournal.org. Published by Seventh Sense Research Group.
Abstract:- the concept of Multiple Input Multiple Output (MIMO) is an advanced one in the field of wireless communications. The main objective behind the MIMO is providing high data rates to multiple users at a time. MIMO also aims to provide maximum channel gain, high degree of multiplexing, robust data rate and multi user diversity etc. however all these are effectively achieved by using the Channel State Information at Transmitter (CSIT). CSIT is the feedback information of the channel from the end users to the transmitter. Therefore multiple users are sending back the information at a same time, which causes the interference among the entire feedback channels and effectively degrades the SINR (Signal to Interference plus Noise Ratio). Therefore to address this problem we provide a systematic approach to derive bounds on the SINR to avoid the problem of interference, by assuming transmitter using zero forcing beam forming, and all the users are assumed to be orthogonal to each other.
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Keywords :— MIMO, Broadcast channels, and array signal processing, feedback communication, co channel interference, diversity methods.