Modulated (Soft-Decision) Differential Frequency Hopping System

Author

Baofeng, Yang ; Yuehong, Shen

Author_Institution

Nanjing Inst. of Commun. Eng., Nanjing

fYear

2007

fDate

7-9 March 2007

Firstpage

209

Lastpage

212

Abstract

A novel FH system named modulated differential frequency hopping (ab. MDFH) system was proposed. In MDFH system, some information was used to produce pseudo-randomly carrier frequency slot (which was just like DFH technology), others was changed into narrowband modulated waveforms (which was just like conventional FH technology). The transmitted signal (narrowband modulated waveform) occupied one or more of the available frequency slots, then the MDFH system came into being. The theoretic analysis and the simulation results showed that, compared to the DFH system, the information rate of the MDFH system was increased. And compared to the conventional FH system, not only the information rate of MDFH system was increased obviously but also the performance of the average bit error rate (BER) in AWGN channel was improved with soft-decision Trellis decoding.

Keywords

AWGN channels; error statistics; frequency hop communication; trellis codes; AWGN channel; BER; bit error rate; modulated differential frequency hopping system; pseudo-randomly carrier frequency slot; soft-decision Trellis decoding; Bit error rate; Communication systems; Communications technology; Frequency measurement; Frequency modulation; Information rates; Narrowband; Spread spectrum communication; Transmitters; Wireless communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Information and Communication Technology, 2007. ICICT '07. International Conference on

Conference_Location

Dhaka

Print_ISBN

984-32-3394-8

Type

conf

DOI

10.1109/ICICT.2007.375377

Filename

4261400