Frequency hopping communication system

Details Frequency hopping communication system Frequency hopping communication system

2006-02-17

2009-08-25

Liu, Shuwang (Department: 2611)

Pulse or digital communications

Spread spectrum

Frequency hopping

C375S131000, C375S135000, C375S146000, C375S147000, C370S342000, C370S344000, C342S150000, C342S151000, C342S152000, C342S153000, C342S155000, C333S193000, C333S194000, C333S195000, C333S196000

Reexamination Certificate

active

07580444

ABSTRACT:
The invention provides an adaptive frequency hopping spread-spectrum (FHSS) transmission system and method, which efficiently utilizes available transmission bandwidth, whilst providing robustness to jamming techniques in wireless communication systems. The proposed technique operates by transmitting a wide-band signal over multiple, single-carrier, parallel transmission subbands, which may occupy non-contiguous frequency regions. The proposed scheme exhibits significant gain in error rate performance, as compared to a data rate equivalent single-subband system in the presence of signal jamming and/or interference without a reduction in the transmission data rate nor an increase in transmitter power. In addition, the proposed system and method are adaptive and enable more efficient use of the available bandwidth for communicating, thus increasing the overall bandwidth utilization of the system.

REFERENCES:
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E. Lance and G.K. Kaleh, “A Diversity Scheme for a Phase-Coherent Frequency-Hopping Spread-Spectrum System”, IEEE Trans. Commun., vol. 45, No. 9, pp. 1123-1129.
Table 8.2-1, p. 492 of text book “Digital Communications, 4thEd,” by John G. Proakis, McGraw-Hill, 2001, New York.

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