Title :
On the use of modulation and diversity for enhancing cellular spectrum efficiency of wireless multimedia communication networks
Author :
Lu, Jianhua ; Ben Letaief, K. ; Liou, Ming L. ; Chuang, Justin C I
Author_Institution :
Dept. of EEE, Hong Kong Univ. of Sci. & Technol., Kowloon, Hong Kong
Abstract :
The third generation wireless personal communication systems are likely to support multimedia traffic, for which high spectrum efficiency is extremely important. We investigate M-PSK and M-QAM with diversity in the presence of fading and co-channel interference. Simple closed-form and general BER (bit-error-rate) expressions, in terms of M (M-ary PSK or M-ary QAM), N (N-branch diversity), Eb/N0(signal-to-noise ratio per bit) and SIR (signal-to-interference ratio), are derived and shown to be in excellent agreement with Monte-Carlo simulations. Based on these expressions, tradeoffs among spectrum efficiency, power efficiency and implementation complexity are studied. Important issues in determining parameters for modulation and diversity in wireless multimedia communication networks are discussed
Keywords :
cellular radio; cochannel interference; coding errors; diversity reception; error statistics; fading; land mobile radio; multimedia communication; noise; personal communication networks; phase shift keying; quadrature amplitude modulation; telecommunication traffic; BER; M-ary PSK; M-ary QAM; Monte-Carlo simulations; SIR; bit-error-rate; cellular spectrum efficiency; closed-form expressions; cochannel interference; diversity; fading; implementation complexity; modulation; multimedia traffic; power efficiency; signal-to-interference ratio; signal-to-noise ratio per bit; third generation personal communication systems; wireless multimedia communication networks; Bit error rate; Communication networks; Fading; Interchannel interference; Multimedia communication; Multimedia systems; Phase shift keying; Quadrature amplitude modulation; Signal to noise ratio; Wireless communication;
Conference_Titel :
Global Telecommunications Conference, 1997. GLOBECOM '97., IEEE
Conference_Location :
Phoenix, AZ
Print_ISBN :
0-7803-4198-8
DOI :
10.1109/GLOCOM.1997.644319
