Paper Info
Title
Design and implementation of an OFDMA-TDD physical layer for WiMAX applications.
Abstract
This work describes the design, implementation, and performance evaluation of an orthogonal frequency division multiple access (OFDMA) time-division duplexing (TDD) physical layer (PHY) compliant with the worldwide interoperability for microwave access (WiMAX) standard using a costeffective software-defined radio (SDR) platform containing field programmable gate array (FPGA) and digital signal processor (DSP) modules. We show that the proposed SDR architecture is capable of supporting the wide variety of configuration options described in the WiMAX standard while fulfilling the stringent requirements of WiMAX OFDMA TDD PHYs. The architecture allows for the implementation of all TDD functionalities in the downlink and the uplink at both the base station and the mobile station. The proposed design is shown to efficiently use the available FPGA and DSP resources. We also carried out specific experiments that take into account the frame and the downlink map messages detection over ITU-R wireless channel models to illustrate the performance of the proposed design. Finally, we discuss the utilization of the proposed hardware architecture to implement the wirelessMAN-advanced air interface.
Year
DOI
Venue
2013
10.1186/1687-1499-2013-243
EURASIP J. Wireless Comm. and Networking
Keywords
Field
DocType
Orthogonal Frequency Division Multiplex, Medium Access Control, Field Programmable Gate Array, Forward Error Correction, Digital Signal Processor
Base station,Computer science,Mobile station,Orthogonal frequency-division multiple access,Computer network,WiMAX,Physical layer,PHY,Air interface,Hardware architecture
Journal
Volume
Issue
ISSN
2013
1
1687-1499
Citations 
PageRank 
References 
10
0.40
14
Authors
6
Name
Order
Citations
PageRank
Angel Carro-Lagoa1181.79
Pedro Suarez-Casal2277.72
José Antonio García-Naya39919.97
Paula Fraga-Lamas424119.01
Luis Castedo557773.24
Antonio Morales-Méndez6100.74