A Novel 2-step Radio Resource Management for the Downlink of Multiuser OFDMA System with Heterogeneous QoS Requirements

Konferenz: WTC - World Telecommunications Congress 2010 - Telecommunications: The Infrastructure for the 21st Century
13.09.2010 - 14.09.2010 in Vienna, Austria

Tagungsband: WTC - World Telecommunications Congress 2010

Seiten: 5Sprache: EnglischTyp: PDF

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Wang, YuPeng; Hui, Bing; Chang, KyungHi (The Graduate School of Information Technology and Telecommunications, Inha University, Incheon 402-751, Korea)

In this paper, we propose a novel 2-step radio resource management algorithm, which treats user differently according to their respective quality of service (QoS) requirements, and solves the problem of the conventional general proportional fair (GPF) algorithm with heterogeneous user QoS requirements. The proposed algorithm is composed of user ordering step and sub-channel allocation step, which guarantee the scheduling delay and data rate requirements, respectively. In such a manner, the proposed 2-step radio resource management algorithm is able to enhance the system performance by serving more users with their target data rates without violation of their scheduling delay requirements, comparing to the conventional algorithms.