Downlink fairness-aware adaptive resource allocation approach for LTE networks

摘要

This article addresses downlink resource allocation strategies in LTE release 8, using orthogonal frequencyndivision access (OFDMA). We consider 3GPP long-term evolution resource allocation strategies for allo-ncating higher-layer data to the basic resource allocation units (slots) of OFDMAframes. Then, we introducentwo simple allocation methods: adaptive slot allocation and reservation-based slot allocation. Bothnapproaches consider a fair resource allocation among different types of service data flow (SDF) bynconsidering their quality of service (QoS) characteristics and their channel qualities. The ultimate objectivenof the proposed approaches is to maximize the capacity of the system subject to the QoS constraints for eachntype of SDF in terms of data rate and bit error rate. Copyright © 2011 John Wiley & Sons, Ltd.