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Abstract In modern wireless networks, the throughput achieved by the edge users is a key erformance indicator of the network. Enhancing the edge user throughput can be achieved through mitigating intercell interference. Long term evolution (LTE) introduces a new technique for interference mitigation through coordination between BSs denoted as coordinated multipoint (CoMP) transmission reception systems. CoMP promises an enhanced edge user downlink throughput, especially in TDD systems. Radio frequency (RF) calibration is necessary for proper CoMP operation. In this thesis, the RF calibration problem in CoMP systems is discussed and analyzed and new techniques are proposed. We study the performance of dierent CoMP schemes and dierent precoders under RF mismatch calibration errors. Numerical results are provided which show the best precoder and the best CoMP mode candidates given dierent SNR and calibration error levels. In addition, a new iterative MMSE-based calibration scheme is introduced and simulation results are provided showing superior performance compared to traditional algorithms. Moreover, a new mobility-aware calibration point selection algorithm is proposed for dierent types of calibration in CoMP systems. Full |