Title :
Applying permutation modulation to spread-spectrum systems
Author :
YongaÇoglu, Abbas ; Wang, Jun
Author_Institution :
Dept. of Electr. Eng., Ottawa Univ., Ont., Canada
Abstract :
Permutation modulation is a power efficient modulation scheme in fading channels due to its implicit diversity. In a DS-CDMA system, the power efficiency and the overall system bandwidth efficiency are closely related. It is shown that in a fading channel the proposed spread spectrum system is more bandwidth efficient than the ones which utilize conventional FSK or PSK modulations. Also it is demonstrated that by using FEC coding, an equivalent concatenated diversity and thus better performance can be achieved
Keywords :
code division multiple access; diversity reception; fading; forward error correction; land mobile radio; modulation; performance evaluation; pseudonoise codes; spread spectrum communication; DS-CDMA system; FEC coding; concatenated diversity; fading channels; performance; permutation modulation; power efficiency; spread-spectrum systems; system bandwidth efficiency; AWGN; Additive white noise; Bandwidth; Fading; Frequency shift keying; Gaussian noise; Multiaccess communication; Phase shift keying; Signal to noise ratio; Spread spectrum communication;
Conference_Titel :
Electrotechnical Conference, 1994. Proceedings., 7th Mediterranean
Conference_Location :
Antalya
Print_ISBN :
0-7803-1772-6
DOI :
10.1109/MELCON.1994.381107
