Partial Joint Processing with Efficient Backhauling in Coordinated Multipoint Networks

摘要: Joint processing between base stations is a promising technique to improve the quality of service users at cell edge, but this poses tremendous requirements on backhaul signaling capabilities, such as distribution channel state information and precoding weights involved in joint processing. Partial aimed reduce feedback load, one approach feed back best links based gain threshold mechanism. However, it has been shown literature that reduction load not reflected an equivalent reduction, unless additional scheduling or techniques are applied. The reason reduced from yields sparse Central Coordination Node. Under these conditions, existing linear fail remove interference backhaul, simultaneously, constraints imposed scheduling. In paper, partial scheme with efficient backhauling proposed, stochastic optimization algorithm called particle swarm optimization. use design precoder promises improved sum rate.