DocumentCode :
3425014
Title :
A Cooperative Transmission Strategy using Hierarchical Modulation
Author :
Lee, Sunyoung ; Park, Sangjoon ; Whang, Keumchan
Author_Institution :
Sch. of Electr. & Electron. Eng., Yonsei Univ., Seoul
fYear :
2008
fDate :
12-14 Oct. 2008
Firstpage :
1
Lastpage :
4
Abstract :
In this paper, a novel forward link cooperation scheme using hierarchical modulation is proposed. We define a cooperative unit cell as a unit which includes base-station (BS), fixed relay-station (FRS) and two types of mobile-station (MS) being the relay-assisted mobile-station (RAMS) and the non-relay-assisted mobile-station (NRAMS). We describe how to exploit the hierarchical modulation for the proposed cooperation between BS-FRS-RAMS link and BS-NRAMS link in the unit cell. The proposed scheme yields an improved throughput due to the characteristics of hierarchical modulation such as simultaneous transmission and multi-level protection layer. Simulation results and simple throughput analysis show that the proposed cooperation scheme outperforms the conventional cooperative and non-cooperative communication schemes with respect to the throughput performance.
Keywords :
cellular radio; mobile communication; modulation; base station; cooperative transmission strategy; cooperative unit cell; fixed relay-station; hierarchical modulation; noncooperative communication; nonrelay assisted mobile station; novel forward link cooperation scheme; Analytical models; Communication networks; Mobile antennas; Mobile communication; Modulation coding; Performance analysis; Protection; Protective relaying; Relays; Throughput;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Wireless Communications, Networking and Mobile Computing, 2008. WiCOM '08. 4th International Conference on
Conference_Location :
Dalian
Print_ISBN :
978-1-4244-2107-7
Electronic_ISBN :
978-1-4244-2108-4
Type :
conf
DOI :
10.1109/WiCom.2008.26
Filename :
4677935
Link To Document :
بازگشت