SI2R-DMA: self-organizing inter- and intra-site interference reduction DMA for GERAN networks

With SI²R-DMA a novel procedure for boosting GERAN capacity in synchronized narrowband deployments has been proposed. The main goal of SI²R-DMA is both the inter- and intra-site interference reduction by intelligent radio resource management evolved from state-of-the-art DMA. For this purpose the new concept of concentric MAIO has been introduced for partitioning cells in inner and outer areas, whereas inner and outer mobiles of different interfering sites are allocated on orthogonal timeslots thus minimizing the mutual inter-site interference caused by random frequency hopping. The interaction between different sites in finding the optimum resource allocation with minimum inter-site interference has been modeled similar to a self-organizing neural network. A detailed description of SI²R-DMA has been provided accompanied by a variety of simulation results. First results are very promising, showing significant capacity gain of about 20% compared to conventional DMA.