Approximating the power spectral density of frequency hopping spread spectrum signals

2012 ◽  
Author(s):  
Ilteris Demirkiran ◽  
Donald D. Weiner ◽  
Andrew Drozd ◽  
Irina Kasperovich
Keyword(s):  
Spectral Density ◽  
Power Spectral Density ◽  
Spread Spectrum ◽  
Frequency Hopping ◽  
Frequency Hopping Spread Spectrum ◽  
Power Spectral ◽  
Spread Spectrum Signals

Compressive Sampling for Detection of Frequency-Hopping Spread Spectrum Signals

2016 ◽  
Vol 64 (21) ◽  
pp. 5513-5524 ◽  
Author(s):  
Feng Liu ◽  
Michael W. Marcellin ◽  
Nathan A. Goodman ◽  
Ali Bilgin
Keyword(s):  
Spread Spectrum ◽  
Frequency Hopping ◽  
Compressive Sampling ◽  
Frequency Hopping Spread Spectrum ◽  
Spread Spectrum Signals

Compressive sensing of frequency-hopping spread spectrum signals

2012 ◽  
Author(s):  
Feng Liu ◽  
Yookyung Kim ◽  
Nathan A. Goodman ◽  
Amit Ashok ◽  
Ali Bilgin
Keyword(s):  
Compressive Sensing ◽  
Spread Spectrum ◽  
Frequency Hopping ◽  
Frequency Hopping Spread Spectrum ◽  
Spread Spectrum Signals

Adaptive Multicarrier Frequency Hopping Spread Spectrum Combined with Channel Coding

2011 ◽  
pp. 157-174
Author(s):  
Abid Yahya ◽  
Othman Sidek ◽  
Farid Ghani ◽  
R. Badlishah Ahmad ◽  
M. F. M. Salleh
Keyword(s):  
Spread Spectrum ◽  
Channel Coding ◽  
Ldpc Codes ◽  
Frequency Hopping ◽  
Frequency Hopping Spread Spectrum ◽  
Codeword Length ◽  
Request Message ◽  
Power Spectral ◽  
A New Technique ◽  
Pn Sequences

This chapter presents an adaptive Multicarrier Frequency Hopping Spread Spectrum (MCFH-SS) system employing proposed Quasi Cyclic Low Density Parity Check (QC-LDPC) codes instead of the conventional LDPC codes. A new technique for constructing the QC-LDPC codes based on row division method is proposed. The new codes offer more flexibility in terms of girth, code rates and codeword length. Moreover, a new scheme for channel prediction in MCFH-SS system is also proposed. The technique adaptively estimates the channel conditions and eliminates the need for the system to transmit a request message prior to transmitting the packet data. The proposed adaptive MCFH-SS system uses PN sequences to spread out frequency spectrum, reduce the power spectral density and minimize the jammer effects.

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