Architecture and Implementation of Fading Compensation for Dynamic Spectrum Access Wireless Communication Systems | Zendy

Masahide Hatanaka | Zendy; Toru Homemoto | Zendy; Takao Onoye | Zendy

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Architecture and Implementation of Fading Compensation for Dynamic Spectrum Access Wireless Communication Systems

Author(s) -

Masahide Hatanaka,

Toru Homemoto,

Takao Onoye

Publication year - 2013

Publication title -

vlsi design

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.123

H-Index - 24

eISSN - 1065-514X

pISSN - 1026-7123

DOI - 10.1155/2013/967370

Subject(s) - orthogonal frequency division multiplexing , fading , subcarrier , computer science , wireless , compensation (psychology) , electronic engineering , channel (broadcasting) , real time computing , computer network , telecommunications , engineering , psychology , psychoanalysis

This paper proposes an efficient architecture and implementation offading compensation dedicated to dynamic spectrum access (DSA)wireless communication. Since pilot subcarrier arrangements are adaptively determined in wirelesscommunication systems with DSA, the proposed architecture employspiecewise linear interpolation to the channel response estimation for datasubcarriers in order to increase the channel estimation accuracy. The fading compensation for an orthogonal frequency-divisionmultiplexing (OFDM) symbol is performed within the time for one OFDMsymbol to make increase of latency smaller. The proposed architecture guarantees real-time processing with 76 MHzor higher clock frequency. The FPGA implementation of the proposedarchitecture occupies 1,577 slices and works up to 121 MHz

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