Title :
Optimization of a finite frequency-hopping ad hoc network in Nakagami fading
Author :
Valenti, Matthew C. ; Torrieri, Don ; Talarico, Salvatore
Author_Institution :
West Virginia Univ., Morgantown, WV, USA
fDate :
Oct. 29 2012-Nov. 1 2012
Abstract :
This paper considers the analysis and optimization of a frequency-hopping ad hoc network with a finite number of mobiles and finite spatial extent. The mobiles communicate using coded continuous-phase frequency-shift keying (CPFSK) modulation. The performance of the system is a function of the number of hopping channels, the rate of the error-correction code, and the modulation index used by the CPFSK modulation. For a given channel model and density of mobiles, these parameters are jointly optimized by maximizing the (modulation-constrained) transmission capacity, which is a measure of the spatial spectral efficiency of the system. The transmission capacity of the finite network is found by using a recent expression for the spatially averaged outage probability in the presence of Nakagami fading, which is found in closed form in the absence of shadowing and can be solved using numerical integration in the presence of shadowing.
Keywords :
Nakagami channels; continuous phase modulation; error correction codes; frequency hop communication; frequency shift keying; integration; mobile ad hoc networks; optimisation; CPFSK modulation; Nakagami fading; channel model; coded continuous-phase frequency-shift keying modulation; error-correction code; finite frequency-hopping ad hoc network optimization; finite spatial extent; hopping channels; mobile communication; mobile density; modulation index; numerical integration; outage probability; spatial spectral efficiency; transmission capacity; Fading; Interference; Mobile communication; Modulation; Receivers; Shadow mapping; Signal to noise ratio;
Conference_Titel :
MILITARY COMMUNICATIONS CONFERENCE, 2012 - MILCOM 2012
Conference_Location :
Orlando, FL
Print_ISBN :
978-1-4673-1729-0
DOI :
10.1109/MILCOM.2012.6415774