Provided by: Northwestern University
Alternative wireless topologies, e.g., an underlay network of Pico-cells, are increasingly seen as being necessary to enhance capacity and coverage in next generation wireless systems. Such networks of closely-spaced base-sites have to contend with high interference issues, wherein interference mitigation via power control or interference co-ordination may not be sufficient. Capacity can be significantly enhanced by Co-ordinated Multi-Point (CoMP) techniques, which allow cooperative signal processing to jointly decode user's signals, especially given fast communication links between the nodes. In this paper, the authors present a cooperative system design for the uplink of LTE for providing high capacity solutions in dense deployments.