TY - JOUR
T1 - Diversity analysis of peaky FSK signaling in fading channels
AU - Gursoy, Mustafa Cenk
AU - Wang, Qingyun
N1 - Funding Information:
Manuscript received December 14, 2007; revised September 26, 2008 and February 22, 2009; accepted May 17, 2009. The associate editor coordinating the review of this letter and approving it for publication was Y. Ma. M. C. Gursoy is with the Department of Electrical Engineering, University of Nebraska-Lincoln, Lincoln, NE 68588 (e-mail: [email protected]). Q. Wang was with the the Department of Electrical Engineering, University of Nebraska-Lincoln. She is now with Automated Precision Inc., Rockville, MD 20850 (e-mail: [email protected]). This work was supported in part by the NSF CAREER Grant CCF-0546384. Digital Object Identifier 10.1109/TWC.2009.071407
PY - 2009/8
Y1 - 2009/8
N2 - Error performance of noncoherent detection of on-off frequency shift keying (OOFSK) modulation over fading channels is analyzed when the receiver is equipped with multiple antennas. The analysis is conducted for two cases: 1) the case in which the receiver has the channel distribution knowledge only; and 2) the case in which the receiver perfectly knows the fading magnitudes. For both cases, the maximum a posteriori probability (MAP) detection rule is derived and analytical probability of error expressions are obtained. Numerical and simulation results indicate that for sufficiently low duty cycle values, lower error probabilities with respect to FSK signaling are achieved. Equivalently, when compared to FSK modulation, OOFSK with low duty cycle requires less energy to achieve the same probability of error, which renders this modulation a more energy efficient transmission technique. Also, through numerical results, the impact of number of antennas, antenna correlation, duty cycle values, and unknown channel fading on the performance are investigated.
AB - Error performance of noncoherent detection of on-off frequency shift keying (OOFSK) modulation over fading channels is analyzed when the receiver is equipped with multiple antennas. The analysis is conducted for two cases: 1) the case in which the receiver has the channel distribution knowledge only; and 2) the case in which the receiver perfectly knows the fading magnitudes. For both cases, the maximum a posteriori probability (MAP) detection rule is derived and analytical probability of error expressions are obtained. Numerical and simulation results indicate that for sufficiently low duty cycle values, lower error probabilities with respect to FSK signaling are achieved. Equivalently, when compared to FSK modulation, OOFSK with low duty cycle requires less energy to achieve the same probability of error, which renders this modulation a more energy efficient transmission technique. Also, through numerical results, the impact of number of antennas, antenna correlation, duty cycle values, and unknown channel fading on the performance are investigated.
KW - Diversity
KW - Duty factor
KW - Fading channels
KW - Frequency-shift keying
KW - MAP detection
KW - Multiple antennas
KW - On-off keying
KW - Probability of error
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U2 - 10.1109/TWC.2009.071407
DO - 10.1109/TWC.2009.071407
M3 - Article
AN - SCOPUS:73149125172
SN - 1536-1276
VL - 8
SP - 3896
EP - 3902
JO - IEEE Transactions on Wireless Communications
JF - IEEE Transactions on Wireless Communications
IS - 8
M1 - 5200945
ER -