Near-optimal resource block and power allocation mechanisms in uplink for LTE and LTE-Advanced

The Third Generation Partnership Project (3GPP) is playing a vital role in standardizing mechanisms for wireless broadband services through the Long Term Evolution (LTE) and LTE-Advanced (LTE-A) standards. In LTE and LTE-A, the resource allocation is scheduled and controlled by the base station (referred to as eNB) whose objective is to maximize the network performance. In this paper, we consider the uplink resource allocation problem in LTE and LTE-A with the objective of maximizing the total throughput of the cell, subject to the exclusivity, adjacency, clustering and power constraints arising from the use of Single Carrier Frequency Division Multiple Access (SC-FDMA) mechanism. We describe novel heuristic methods which can be adopted for both LTE and LTE-A to provide a near-optimal resource allocation using penalty-based optimization techniques. The simulation results show that our methods provide solutions which are more than 86% accurate when compared to the optimal solution.