Call for Papers

Apr 2019 - Volume 10, Issue 2
Deadline: 5 Apr 2019
Notification: 15 Apr 2019
Publication: 30 Apr 2019

June 2019 - Volume 10, Issue 3
Deadline: 5 June 2019
Notification: 15 June 2019
Publication: 30 June 2019

Indexed in


Title : Optimization of Subcarrier and Power Allocation in Uplink OFDMA Systems
Authors : M.Vadivel, H.Ranganathan
Keywords : OFDMA, CP,IDFT
Issue Date : Oct-Nov 2012
Abstract :
The allocation of subcarriers and power to users is an important issue for exploiting the advantages of OFDMA systems. The main objective of the traditional OFDMA uplink resource allocation focuses on two aspects: one is to maximize the transmission rate of each user, the other is to minimize power. In this paper, we proposed the joint subcarrier and power allocation in the uplink of an OFDMA system thereby increasing the rate sum capacity of the system with low computational burden. The simulation results shows that the power efficiency of the proposed algorithm increases greatly over that of the Maximum marginal Rate subcarrier and WaterFilling power allocation, which is the optimal algorithm to derive the maximum transmission rate and the power utilization can be minimized.
Page(s) : 700-706
ISSN : 0976-5166
Source : Vol. 3, No.5