Title
Dynamic resource assignment and cooperative relaying in cellular networks: concept and performance assessment
Abstract
Relays are a cost-efficient way to extend or distribute high data rate coverage more evenly in next generation cellular networks. This paper introduces a radio resource management solution based on dynamic and flexible resource assignment and cooperative relaying as key technologies to enhance the downlink performance of relay-based OFDMA cellular networks. It is illustrated how the dynamic resource assignment is combined with beamforming in a macrocellular deployment and with soft-frequency reuse in a metropolitan area deployment. The cooperative relaying solution allows multiple radio access points to cooperatively serve mobile stations by combining their antennas and using themultiantenna techniques available in the system. The proposed schemes are compared to BS only deployments in test scenarios, which have been defined in the WINNER project to be representative for next generation networks. The test scenarios are well defined and motivated and can serve as reference scenarios in standardisation and research. The results show that the proposed schemes increase the average cell throughput and more importantly the number of users with low throughput is greatly reduced.
Year
DOI
Venue
2009
10.1155/2009/475281
EURASIP J. Wireless Comm. and Networking
Keywords
Field
DocType
resource allocation,multi- cell,low throughput,radio resource management,dynamic and flexible resource assignment,average cell throughput,winner,cellular network,index terms—relay,cooperative relaying solution,relay enhanced cell,radio resource management solution,proposed scheme,ofdma,performance assessment,wimax,imt-advanced.,test scenario,dynamic resource assignment,flexible resource assignment,cooperative relaying,standardisation,indexing terms,cost efficiency,mobile station,next generation network
Radio resource management,Next-generation network,Computer science,Computer network,Scenario testing,Cellular network,Throughput,Space-division multiple access,Relay,Telecommunications link
Journal
Volume
Issue
ISSN
2009,
1
1687-1499
Citations 
PageRank 
References 
29
2.94
23
Authors
5
Name
Order
Citations
PageRank
Klaus Doppler11723153.67
Simone Redana253853.05
Michał Wódczak3424.77
Peter Rost4292.94
Risto Wichman51860130.53