Title :
Performance evaluation of data packet transmission via Nakagami fading channels with NPCSMA protocol for NCPSK and QPSK modulation schemes
Author :
Digham, Fadel F A ; Tawfik, M. Hazem
Author_Institution :
GSM, Alcatel Telecom, Egypt
Abstract :
New expressions for the average probability of packet error in case of intermediate Nakagami (1960) fading channels are derived. The correlation among bits within the packet is assumed to obey the first order Markovian process. Both non-coherent frequency shift keying (NCFSK) and quadrature phase shift keying (QPSK) modulation schemes are addressed. The average probability of packet error is used to obtain an expression for the modified throughput for the non-persistent carrier sense multiple access (NPCSMA) protocol. The different fading parameters affecting the modified throughput expression such as the average signal to noise ratio (SNR), fading margin and correlation factor among bits of the same packet are also analyzed
Keywords :
Markov processes; access protocols; carrier sense multiple access; data communication; error statistics; fading channels; frequency shift keying; multiuser channels; packet radio networks; quadrature phase shift keying; NCPSK; NPCSMA protocol; Nakagami fading channels; QPSK; SNR; average packet error probability; average signal to noise ratio; correlation; correlation factor; data packet transmission; fading margin; fading parameters; first order Markovian process; modified throughput; modulation; non-coherent frequency shift keying; nonpersistent carrier sense multiple access; performance evaluation; quadrature phase shift keying; Fading; Frequency shift keying; GSM; Nakagami distribution; Phase modulation; Probability; Protocols; Quadrature phase shift keying; Telecommunications; Throughput;
Conference_Titel :
Wireless Communications and Networking Confernce, 2000. WCNC. 2000 IEEE
Conference_Location :
Chicago, IL
Print_ISBN :
0-7803-6596-8
DOI :
10.1109/WCNC.2000.903928
