An expectation-maximization type receiver for uplink of a hopping system with time sharing Zaman paylaşimli atlamali yukari hat bir sistem i̇çin beklenti en büyükleme tabanli bir alici
2009 IEEE 17th Signal Processing and Communications Applications Conference, SIU 2009, Antalya, Türkiye, 9 - 11 Nisan 2009, ss.185-188, (Tam Metin Bildiri)
- Yayın Türü: Bildiri / Tam Metin Bildiri
- Doi Numarası: 10.1109/siu.2009.5136363
- Basıldığı Şehir: Antalya
- Basıldığı Ülke: Türkiye
- Sayfa Sayıları: ss.185-188
- Maltepe Üniversitesi Adresli: Evet
Özet
In this work, Expectation-Maximization type receiver for uplink of an MC-CDMA system based on a time sharing hopped communication technique is proposed in order to cope with the multipath fading effect in a wireless communication system. In the proposed time-sharing hopped communication method, managing mechanism determines each user channel quality knowledge by controlling the quality of the channels between users and it. In order to present a higher quality transmission for the users with low quality channels, managing mechanism gives an opportunity to them to send their message over the users with high quality channels in time sharing mode. Thus, transmission quality for the users with low quality channel is improved. The performance of the proposed receiver, with/without hopping and with cooperative communication technique, is analysed for multipath flat fading channels by computer simulation, and results are presented. ©2009 IEEE.