Effective Periodic Feedback CSI Channel Allocation Under Possible Circumstances in Modern Broadband Wireless Networks.

The capacity of the radio link can be improved a lot by using modern wireless technologies like Multiple Input and Multiple Output (MIMO) technology. Successful and efficient implementation of MIMO is possible only when there is a lot of feedback from the mobile station to the base station from time to time. This continuous feedback consumes a lot of uplink bandwidth. Bandwidth is very expensive in the current scenario. Hence, MIMO became expensive setup and viewed as a major obstacle in the deployment. As of our knowledge, this paper is the first to propose a novel scheme for efficient allocation of periodic feedback channel to the wireless network. In this paper, we defined various practical problems in the optimization of network and provided a solution by efficient algorithms. We defined two problems in the allocation process and given a solution with the help of an optimal polynomial-time algorithm. We also proposed a scheme when the base station should adopt the best algorithm among different algorithms. We also proposed combined scheme when Base station limit the resources and unable to execute the defined algorithms. The performances of the algorithms were shown through simulation results. [ABSTRACT FROM AUTHOR]