A Distributed Optimization Framework For Multi-channel Multi-user Small Cell Networks

Autor:	Li, Shuqin, Cai, Liyu
Rok vydání:	2014
Předmět:	Computer Science - Networking and Internet Architecture
Druh dokumentu:	Working Paper
Popis:	Small cell enchantment is emerging as the key technique for wireless network evolution. One challenging problem for small cell enhancement is how to achieve high data rate with as-low-as-possible control and computation overheads. As a solution, we propose a low-complexity distributed optimization framework in this paper. Our solution includes two parts. One is a novel implicit information exchange mechanism that enables channel-aware opportunistic scheduling and resource allocation among links. The other is the sub-gradient based algorithm with a polynomial-time complexity. What is more, for large scale systems, we design an improved distributed algorithm based on insights obtained from the problem structure. This algorithm achieves a close-to-optimal performance with a much lower complexity. Our numerical evaluations validate the analytical results and show the advantage of our algorithms. Comment: Technical report of the paper with the same name to be published in IEEE communication letters
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1402.2390 Zobrazit plný text záznamu View this record from Arxiv