Title :
Computer simulation of Reed-Solomon codes in FCMA system
Author :
Marie, Mohamed F. ; El-Azm, Atef Abou ; Ali, Mahmoud A A
Author_Institution :
Dept. of Electr. Commun., Menoufia Univ., Egypt
Abstract :
Frequency comb multiple access (FCMA) is a new system that belongs to the random multiple access family. The main drawback of this system is that the spectral efficiency is very low and it requires high transmitted power. This can be overcomed by using non-binary codes (e.g. RS codes). This paper presents the computer simulation of a coded FCMA system in the presence of multiple access interference (MAI) and white Gaussian noise (AWGN). Either the source rate or the number of frequency divisions should be reduced to overcome the bandwidth constraint. The obtained results showed that at the same transmitted power the spectral efficiency can be doubled, also the transmitted power can be reduced approximately by 5 dB if the spectral efficiency is kept constant
Keywords :
Gaussian noise; Reed-Solomon codes; multi-access systems; packet radio networks; radio spectrum management; radiofrequency interference; satellite communication; white noise; FCMA system; RS codes; Reed-Solomon codes; bandwidth constraint; frequency comb multiple access; frequency divisions; multiple access interference; nonbinary codes; packet satellite communications; random multiple access; source rate; spectral efficiency; transmitted power; white Gaussian noise; Analytical models; Bandwidth; Bit error rate; Bit rate; Computer simulation; Decoding; Frequency shift keying; Multiple access interference; Reed-Solomon codes; Satellite communication;
Conference_Titel :
Radio Science Conference, 1998. NRSC '98. Proceedings of the Fifteenth National
Conference_Location :
Cairo
Print_ISBN :
0-7803-5121-5
DOI :
10.1109/NRSC.1998.711487
