Design and verification of SC-FDE/OFDM communication schemes for millimetre-wave wireless system using FPGA technologies

This thesis contributes to the development and characterization of millimetre-wave personal area networks (WPANs) in the 60 GHz frequency band. Single-carrier and multicarrier transmission techniques are considered in the implementation of a 64.8 GHz WPAN capable of achieving a reliable indoor link. Thus, single-carrier with frequency domain equalization (SC-FDE) and orthogonal frequency-division multiplexing (OFDM) communication schemes were designed and implemented to mitigate the multipath fading of the 60 GHz indoor channels. As a result, a complete millimetre-wave transceiver operating at 64.8 GHz, with up to 100 Mb/s data-rate utilizing 16-QAM modulation scheme is realized.<br/><br/>The re-programmability offered by field-programmable gate arrays (FPGAs) along with their capability of performing real-time digital signal processing has been exploited. A FPGA-based platform is employed to prototype the hardware implementation of the baseband digital signal processing modules of the proposed 64.8 GHz millimetre-wave transceiver. The design and the construction of the complete baseband transceiver is based on a software-defined radio (SDR) concept, which was achieved by a software and hardware implementation of different functional modules of the digital baseband transceiver.<br/><br/>The baseband transceiver has been successfully interfaced with a 64.8 GHz radio system which was built using commercially available discrete RF modules. The back-to-back performance of both baseband transceiver and the 64.8 GHz WPAN has been validated. <br/><br/>The performance of the implemented transceiver has been characterized in different transmission scenarios, within different environments, and with line-of-sight and non-line-of-sight conditions. This characterization has been performed by measuring the bit-error rate (BER) against signal-to-noise ratio (SNR) in different communication scenarios.<br/><br/>The work presented in this thesis shows that a 64.8 GHz WPAN can be successfully implemented with either SC-FDE or OFDM communication scheme. Also, the advantage of SC-FDE and its ability to be a prominent alternative to the OFDM in multipath channels is presented.<br/><br/>The novel aspects of this thesis are summarized as follows:<br/><br/>1.Design, implementation, and performance verification of a 64.8 GHz WPAN using SC-FDE and OFDM communication schemes together with frequency domain equalization (FDE).<br/><br/>2.BER characterization and performance evaluation in indoor multipath channels for various use cases scenarios.<br/>

Name dc:type.qualificationname

Doctoral Thesis

Level dc:type.qualificationlevel

Student thesis

Year dc:date.issued

2012

Author dc:creator

• Sobaihi, Hhaled

• Wireless communication systems
• Personal area networks

Language dc:language

eng

Identifier

oai:pure.atira.dk:studenttheses/b437624a-c038-4e83-9d1b-ff054913f2e3

OAI identifier oai:identifier

oai:pure.atira.dk:studenttheses/b437624a-c038-4e83-9d1b-ff054913f2e3