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We design a low-complexity solution to multi-layer optimization in multi-hop wireless networks with throughput objectives. Considering channel sensing and power control at the physical layer, we formulate resource allocation as a non-convex throughput optimization problem that allows distributed implementation. We develop a genetic algorithm to solve this physical layer problem with local information...
In this paper, we consider downlink communication in multicell systems with each cell containing one base station (BS) and multiple mobile stations (MS). Full frequency reuse is assumed allowing the BSs to transmit simultaneously over the same frequency band. We propose a power control algorithm to minimize the impact of intercell interference and maximize the system overall throughput. The proposed...
In this paper, we propose a transmission scheme for the two-user symmetric multiple antenna interference channel (IFC) and show that the proposed transmission scheme can achieve the optimal diversity-multiplexing tradeoff (DMT) of the channel. The proposed transmission scheme requires only limited channel state information at the transmitter (CSIT) and is suitable for practical implementation. The...
In this paper, we investigate the diversity-multiplexing tradeoff (DMT) of the delay-limited symmetric two-user fading interference channel (IFC) with full-duplex source cooperation. Upper and lower bounds on the channel DMT are derived and shown to be tight, i.e., the lower bound meets the upper bound. The DMT behavior of the channel is thus fully determined. The upper bound is derived based on a...
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