Achieving arbitrary throughput-fairness trade-offs in the inter cell interference coordination with fixed transmit power problem
نویسندگان
چکیده
We study the problem of inter cell interference coordination (ICIC) with fixed transmit power in OFDMA-based cellular networks, which each base station (BS) needs to decide as subchannel, if any, allocate its associated mobile stations (MS) for data transmission. In general, there exists a trade-off between total throughput (sum throughputs all MSs) and fairness under allocations found by resource allocation schemes. introduce concept $$\tau -\alpha -$$ modifying $$\alpha fairness, was earlier proposed context congestion control packet-switched networks. The allows us achieve arbitrary trade-offs selecting an appropriate value $$\alpha$$ $$[0,\infty )$$ . show that every \in [0,\infty > 0$$ , finding fair is NP-Complete. Further, we [0, \infty exist thresholds such potential levels experienced MS on subchannel are above threshold values, then can be optimally solved polynomial time reducing it bipartite graph matching problem. Also, propose simple, distributed algorithm ICIC problem, flexible, requires small amount operate, information exchange among only neighboring BSs. investigate via simulations how parameters should selected so any desired fairness. Finally, compare performance those simulated annealing based opportunistic algorithms terms throughput, index computational complexity.
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ژورنال
عنوان ژورنال: Wireless Networks
سال: 2021
ISSN: ['1572-8196', '1022-0038']
DOI: https://doi.org/10.1007/s11276-021-02692-1