Destination cooperation in interference channels
Boulos Wadih Khoueiry, Mohammad Soleymani · 2012
Multiple Input Multiple Output (MIMO) techniques are used to exploit spatial diversity and to achieve high bit rates required for emerging multimedia applications. Cooperative communication can be used to achieve the diversity gains typical of MIMO without the need for multiple antennas on the consumer units. In this paper, we investigate the use of receiving node (destination) cooperation. We evaluate the performance of destination cooperation in an interference channel (DC-IC). We compare the performance of this system with the baseline 2-user orthogonal channel method. We demonstrate that the 2-user DC-IC outperforms the baseline technique by far. This is due to the cooperative communication. In the cooperative scheme, the receiver nodes in the first time slot, decode the received information from both sources while in the second time slot they cooperate. The scheme provides both diversity and coding gain. Using a typical scenario, we illustrate the efficiency of employing such technique with and without channel coding. However, the proposed technology can be applied to consumer mobile communication devices such as smart phones, tablets, etc...