Minimum Interference Distributed Scheduling for Packet Transmission

Modern wireless systems require high capacity and flexibility in the radio resource management. In this context, performance is typically limited by the interference generated by transmitters operating simultaneously in the same frequency bands. In particular, wireless short and medium range systems (e.g., wireless sensor networks) have often their transmissions organized on a packet basis so that each node occupies the medium for a time interval that is much shorter than the transmission period. In this paper we introduce a novel scheduling algorithm for addressing multiple access based on time division (TD) in wireless networks without the need of any signalling for synchronizing mutual access. The scheduling algorithm minimizes the incremental interference for each transmitting nodes onto the existing interference scenario without any need of global coordination or synchronization. Numerical results shows that this scheduling procedure distributes effectively the transmission times of the network nodes in order to avoid (or possibly minimize) the interference impact on the network.