Radio Resource Management for Wireless Networks
Radio Resource Management for Wireless Networks
An opportunistic power control algorithm for cellular network
IEEE/ACM Transactions on Networking (TON)
Multimode precoding for MIMO wireless systems
IEEE Transactions on Signal Processing - Part I
Uplink Power Control in Multi-Cell Spatial Multiplexing Wireless Systems
IEEE Transactions on Wireless Communications
Adaptive modulation and MIMO coding for broadband wireless data networks
IEEE Communications Magazine
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Recently, several works have pointed out the negative impact of intercell interference variation on the performance of link adaptation in multi-cell single input single output (SISO) systems. However, the performance of adaptive precoder selection in multiple input multiple output (MIMO) cellular networks in the presence of interference variation is much less understood. In this paper we develop a simulation model for MIMO orthogonal frequency division multiple access (OFDMA) networks that allows us to study the impact of popular scheduling and power control algorithms on the time variation of the uplink interference power. We find that employing a time persistent proportional fair scheduler (which we term proportional fair in frequency, PFF, scheduler) together with an open loop power control scheme significantly reduces intercell interference variation and thereby it provides higher throughput than traditional schedulers that are primarily optimized for a single cell setting without taking into account the variation of the intercell interference power.