Title :
Improvement on power efficiency of MPSK by employing elliptical signals
Author :
Song, Chunyi ; Shimamoto, Shigeru
Author_Institution :
Graduate Sch. of Global Inf. & Telecommun. Studies, Waseda Univ., Tokyo
Abstract :
By replacing a circle with ellipses in constellations of MPSK (M=2,4,8), this paper propose several modulation schemes defined as M-ary elliptical phase shift keying (M-EPSK, M=2,4,8). Both mathematical analysis and computer simulations show that M-EPSK can improve power efficiency over MPSK, and have high flexibility to make trade-offs on power efficiency and bandwidth efficiency by varying eccentricities
Keywords :
bandwidth allocation; mathematical analysis; phase shift keying; M-ary elliptical phase shift keying; MPSK; bandwidth efficiency; elliptical signals; mathematical analysis; power efficiency; Bandwidth; Computer simulation; Constellation diagram; Euclidean distance; Frequency; Genetic expression; Mathematical analysis; Phase modulation; Phase shift keying; Sampling methods;
Conference_Titel :
Wireless Communications and Networking Conference, 2006. WCNC 2006. IEEE
Conference_Location :
Las Vegas, NV
Print_ISBN :
1-4244-0269-7
Electronic_ISBN :
1525-3511
DOI :
10.1109/WCNC.2006.1696589
