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Information Technology Journal

Year: 2011 | Volume: 10 | Issue: 7 | Page No.: 1452-1456
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Authors

K. Chanthirasekaran

M.A. Bhagyaveni

Keywords

Research Article

An Efficient Scheduling Scheme for Resource Utilization and Performance Enhancement of Multi User MIMO Wireless Systems

K. Chanthirasekaran and M.A. Bhagyaveni
Efficient resource utilization and management is a key demand for improved capacity and quality of service in wireless communication networks. Resource utilization and bit rate requirements push the new challenging wireless communication standards for algorithm and signal theory implementation to their limits. One of the main strategies which are being used to achieve the required rates is the Multiple Input-Multiple Output (MIMO) technique which employs multiple antennas both at transmission and reception. In this study, a new technique for resource allocation through Efficient Scheduling (ES) for multi user multiple-input multiple-output (MU-MIMO) systems under Space-Time Block Coding (STBC) transmissions is described. The ES scheme is developed with the goal to provide improved performance in terms of a low Bit Error Rate (BER), high Packet Delivery Ratio (PDR), partial resource utilization and service fairness among the users. This scheme allocates resources adaptively to the multi users based on their received Signal to Noise Ratio (SNR) and available resources. The ES performance is analyzed and compared with other scheduling schemes such as Fair Scheduling (FS); Priority Scheduling (PS) and threshold based scheduling (TFS) using simulation. The obtained results prove that ES has significant improvement in PDR performance as compared to the other scheduling schemes.
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