Tight Bounds on SINR with ZFBF and Feedback
Journal Title: INTERNATIONAL JOURNAL OF COMPUTER TRENDS & TECHNOLOGY - Year 2013, Vol 5, Issue 4
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
Authors and Affiliations
Burra Rekha , Sanjay Madupu
Keywords
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