Nature Inspired M
Nature Inspired Metaheuristics Techniques based Dynamic Subcarrier, Bit and Power Allocation for OFDMA-Based Relay Networks
S. Nagarani
Research Scholar, AUC ，C.V. Seshaiah, Professor, SREC
Email：[email protected]
Abstract：Relay Network is considered as a capable kind of a future network where in addition to BSs and SSs, Relay Stations (RS) also exists. A RS forwards messages between a source and destination. Relay Stations (RSs) and Orthogonal Frequency-Division Multiplexing (OFDM) have become promising domain for the future generation of wireless systems due to its inherent resistance to frequency selective multi-path fading and its flexibility in resource allocations. In recent times, resource allocation in OFDM has been attracting several researches in the field of wireless networking. It has been observed recently that the integration of OFDM and relay networks is providing considerable performance. In this paper, comparative analysis is carried out by comparing the performance of the two nature inspired metaheuristic optimization techniques such as Ant Colony Optimization (ACO) and Artificial Bee Colony (ABC). The performance of both the approaches is compared in terms of Cumulative Distribution Function (CDF), bit error rate, convergence behaviour and delay rate. It is observed from the results that ABC performs better than the ACO.
[S.Nagarani. Nature Inspired Metaheuristics Techniques based Dynamic Subcarrier, Bit and Power Allocation for OFDMA-Based Relay Networks. Life Sci J 2013:10(1):3241-3251]. (ISSN: 1097-8135).http://www.lifesciencesite.com.
Keywords：OFDM, Base Station, Relay Stations, Artificial Bee Colony (ABC), Ant Colony Optimization (ACO).
