Abstract
With the recent advances in wireless radio access technologies (RATs), various types of RATs are coexisting in the current communication systems. This letter studies the distributed multi-radio access control for the random decentralized OFDMA-based multi-RAT wireless networks, where the randomly distributed multi-mode capable transmitters communicate with their designated receivers by probabilistically accessing to either multiple RATs or single RAT. We analyze the network throughputs and derive the optimal RAT access mode selection probability with stochastic geometry. We numerically evaluate how various system parameters affect on the optimal mode selection probability and validate that the optimal balance of two access modes can maximize the network throughput by efficiently controlling the network interference and aggregating the bandwidth.
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