| Popis: |
We design novel mechanisms and algorithms for fast, simple, and distributed interference management and scheduling in wireless femto networks via exchange of information over-the-air (OTA). We focus on the Long Term Evolution (LTE) of the 3GPP standard and on the downlink; we leverage the existing signalling and delineate additional signals that need to be introduced in the standard. Key aspects of our work include: (1) our design involves only one round of exchange of very few bits of information in each time slot (of the order of 1 ms) resulting in a very low control overhead, (2) our algorithm is a heuristic derived from the maximum weight scheduling algorithm for a realistic interference model (as opposed to an abstract $k$-hop interference model), and (3) our framework allows for an easy control of fairness for best effort flows, control of delay tails for delay sensitive QoS flows, and relative prioritization between best effort and QoS flows. The performance of the mechanisms and algorithms is validated using system simulations based on 3GPP evaluation methodology. |
