Optimal Channel and Relay Assignment in OFDM-Based Multi-Relay Multi-Pair Two-Way Communication Networks
Journal Title: INTERNATIONAL JOURNAL OF COMPUTER TRENDS & TECHNOLOGY - Year 2013, Vol 6, Issue 2
Abstract
The aim of the paper lies in maximizing the system total throughput by optimally coordinating the relay and subcarrier assignment among the multiple pairs of two-way users. In this Paper, consider an OFDM-based network where multipler elays help multiple pairs of source nodes to conduct Bidirectional communications.. The joint optimization problem of subcarrier pairing based subcarrier assignment and relay selection for multiple two-way users is considered as a combinatorial optimization problem. Hence graph based approach is implemented to establish the equivalence between the proposed problem and a maximum weighted bipartite matching (MWBM) problem. Then the problem is solved by the corresponding graph based algorithm optimally in polynomial time
Authors and Affiliations
N. Sreenivasulu Reddy , K. Niranjan Kumar
Keywords
Related Articles
- EP ID EP136288
- DOI -
- Views 136
- Downloads 0
Study of Routing Protocols in Mobile Ad Hoc Networks
Mobile ad hoc networks (MANETs) are rapidly evolving as an important area of mobility. MANETs are infrastructure less autonomous collection of mobile users that communicate over relatively bandwidth constrained wireless...
Lifetime Analysis Using Encoding Technique in Wireless Sensor Network
The significant challenge in Wireless Sensor network is to maximize the network lifetime through minimizing energy. The monitoring area close to the Sinknode forms a bottleneck zone because of large traffic- flow which l...
Decision Support System to Majoring High School Student Using Simple Additive Weighting Method
Decision choice problems occur in every age levels, including teen-age when students will go to higher school level education. Senior High School is the first level of education that student chooses and follows the major...
Security Strategies for Online Social Networks
In this decade online social networks (OSNs) have marvelous enlargement per hundred of millions of users on the internet. The internet users are more good-looking about OSNs for information sharing and social interaction...
Robust Watermarking Framework with DCT Based Encryption
Since several years,, the protection of multimedia data is becoming extremely important. The protection of the multimedia data might be performed with encryption or data hiding algorithms. To address the transmission tim...