Design and implementation of a low-complexity RAKE receiver and Channel Estimator for DS-UWB

Author

Thomos, Christos ; Papadopoulos, Charalampos ; Kalivas, Grigorios

Author_Institution

Dept. of Electr. & Comput. Eng., Univ. of Patras, Patras, Greece

fYear

2010

fDate

26-28 April 2010

Firstpage

93

Lastpage

98

Abstract

In this paper, the design and implementation of a low complexity Direct Sequence Ultra-Wideband (DS-UWB) receiver subsystem which incorporates a Channel Estimator (CE) and a novel hybrid Partial/Selective (HPS) RAKE Receiver (RR) using maximal ratio combining (MRC) is presented. The proposed architecture demonstrates the tradeoff between energy capture, performance and receiver complexity by combining the benefits of both partial and selective RAKE receiver algorithms. We focus our work on a highly parallel, modular, synthesizable design which is based on FPGA technology and it is optimized for high performance.

Keywords

channel estimation; design; field programmable gate arrays; radio receivers; receivers; ultra wideband communication; DS-UWB; FPGA technology; channel estimator; direct sequence ultra-wideband receiver subsystem; hybrid partial-selective RAKE receiver; maximal ratio combining; receiver complexity; synthesizable design; Diversity reception; Energy capture; Fading; Fingers; Intersymbol interference; Multipath channels; Pulse modulation; RAKE receivers; Ultra wideband technology; Wireless sensor networks;

fLanguage

English

Publisher

ieee

Conference_Titel

MELECON 2010 - 2010 15th IEEE Mediterranean Electrotechnical Conference

Conference_Location

Valletta

Print_ISBN

978-1-4244-5793-9

Type

conf

DOI

10.1109/MELCON.2010.5476334

Filename

5476334