Abstract:
Network Multiple Input Multiple Output (MIMO) is able to increase spectrum efficiency and mitigate inter-cell interference. These benefits mainly result from one salient ...Show MoreMetadata
Abstract:
Network Multiple Input Multiple Output (MIMO) is able to increase spectrum efficiency and mitigate inter-cell interference. These benefits mainly result from one salient feature of network MIMO, the centralized control enabling coordinated scheduling. As Software Defined Networking (SDN) provides the innate centralized control, we propose a new cellular system architecture featuring SDN network MIMO. In this setting, the coordination of network MIMO downlink transmission is achieved in the SDN fashion. Two performance metrics, Cluster Average flow rule Storage Load (CASL) and Cluster Average flow table Miss Rate (CAMR) of Base Stations (BSs) are solved based on a Multivariate Markov Chain (MMC) model for flow rule dynamics of the BSs in a cluster. According to the analysis, we design an algorithm for the controller to assign flow rule timeout values to minimize the CASL for a given CAMR. Simulation results are presented to show the accuracy of the analysis, and the insight into the trade-off between the two metrics.
Date of Conference: 20-24 May 2018
Date Added to IEEE Xplore: 30 July 2018
ISBN Information:
Electronic ISSN: 1938-1883