Effects of Frequency and Timing Offsets on the FFH-MA System Over a Rician Fading Channel

Jeungmin JOO  Kanghee KIM  Hyunduk KANG  Kiseon KIM  

Publication
IEICE TRANSACTIONS on Communications   Vol.E88-B   No.4   pp.1714-1717
Publication Date: 2005/04/01
Online ISSN: 
DOI: 10.1093/ietcom/e88-b.4.1714
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Wireless Communication Technologies
Keyword: 
fast frequency hopping,  multiple access,  frequency and timing offsets,  Rician fading channel,  

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Summary: 
The bit error rate (BER) degradations of fast frequency hopping multiple access (FFH-MA) systems due to the frequency and timing offsets are investigated over a Rician fading channel. It is shown that as the received average SNR increases, the BER is affected much larger by frequency and timing offsets. When the frequency offset or the timing offset exists alone, the BER of the FFH-MA system is degraded much more due to the timing offset than due to the frequency offset. The BER degradation due to both the frequency offset and the timing offset is larger than the sum of the degradations due to each offset.