Performance Evaluation of Multiple Differential Detection for Third Generation Mobile Communication System
Third generation mobile communication system is widely used nowadays. One of its parameter standard, which is QPSK modulation has been adopted by International Telecommunication Union (ITU) to be used in IMT-2000. However, due to amplitude variations introduced in QPSK, a rather robust and reliable...
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| Main Authors: | , , |
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| Format: | Conference or Workshop Item |
| Language: | English |
| Published: |
2007
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| Subjects: | |
| Online Access: | http://eprints.utem.edu.my/id/eprint/6834/1/Performance_evaluation_of_multiple_differential_detection_for_third_generation_mobile_communication_system.pdf http://eprints.utem.edu.my/id/eprint/6834/ http://www.apace2007.org/ |
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| Summary: | Third generation mobile communication system is widely used nowadays. One of its parameter standard, which is QPSK modulation has been adopted by International Telecommunication Union (ITU) to be used in IMT-2000. However, due to amplitude variations introduced in QPSK, a rather robust and reliable data modulation technique, namely the p/4-shift Differential QPSK is proposed. For detection
purposes, two types of detectors are evaluated for their
performance in AWGN and Rayleigh fading channels.A differential detection technique called multiple differential detection technique which uses maximumlikelihood sequence estimation (MLSE) of the
transmitted phases is compared with conventional
differential detection which uses symbol-by-symbol
detection. By using some of the IMT-2000 standard
parameters, the simulation results show that multiple
differential detection scheme performs much better
than conventional differential detection scheme. |
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