Erratum to: Joint subcarrier and power allocation for downlink cellular OFDMA systems by intercell interference limitation
نویسندگان
چکیده
منابع مشابه
Optimization of Subcarrier and Power Allocation in Uplink OFDMA Systems
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 s...
متن کاملPerformance Evaluation of Bit Loading, Subcarrier Allocation, and Power Control Algorithms for Cellular OFDMA Systems
We consider the problem of radio resource allocation for QoS support in the downlink of a cellular OFDMA system. The major impairments present are co-channel interference (CCI) and frequency selective fading. The allocation problem involves assignment of base stations, subcarriers and bits, as well as power control, for multiple users. We evaluate the performance of a three-stage, low-complexit...
متن کاملOptimal Subcarrier Allocation Algorithm for OFDMA Systems
An optimal subcarrier allocation algorithm is proposed for orthogonal frequency division multiple access systems over Rayleigh fading channels with channel state information feedback. The transmitted orthogonal frequency division multiple access frame is divided into groups called subchannels according to the detected number of users at the base station. The pilots are reduced for the stable su...
متن کاملDistributed Resource Allocation for Downlink Multicell OFDMA Systems
This paper addresses resource allocation for sum throughput maximization in a sectorized two-cell downlink OFDMA systems impaired by multicell interference. It is well known that the optimization problem for this scenario is NPhard and combinational, which is here converted to a novel sum throughput maximization problem based on the intercell interference limitation. Then, two subclasses of thi...
متن کاملSubcarrier-Chunk Assignment With Power Allocation and Multiple-Rate Constraints for Downlink OFDMA
We consider downlink OFDMA in which users are imposed with different proportional-rate constraints, and a base station would like to maximise user rate over subcarrier assignment (SA) and power allocation (PA). To attain the objective, we propose a chunk-based SA and low-complexity PA algorithms. Numerical results show that the proposed SA and PA can provide higher average minimum achievable ra...
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ژورنال
عنوان ژورنال: Telecommunication Systems
سال: 2013
ISSN: 1018-4864,1572-9451
DOI: 10.1007/s11235-013-9861-4