Title :
Channel reuse strategies for indoor infrared wireless communications
Author :
Marsh, Gene W. ; Kahn, Joseph M.
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., California Univ., Berkeley, CA, USA
Abstract :
We examine systems of fixed channel reuse for base stations in an indoor infrared wireless communication system. The following techniques are compared: time-division multiple access (TDMA) using on-off keying (OOK) or pulse-position modulation (PPM), frequency-division multiple access (FDMA) using binary phase-shift keying (BPSK), and code-division multiple access (CDMA) using OOK with direct-sequence spreading by m-sequences or optical orthogonal codes (OOCs). TDMA using PPM is found to offer superior performance in terms of complexity and average optical power required to cover a room
Keywords :
access protocols; amplitude shift keying; binary sequences; code division multiple access; frequency allocation; optical communication; optical modulation; performance evaluation; phase shift keying; pseudonoise codes; pulse position modulation; spread spectrum communication; time division multiple access; wireless LAN; BPSK; CDMA; FDMA; OOK; PPM; TDMA; average optical power; base stations; binary phase shift keying; code division multiple access; complexity; direct sequence spreading; fixed channel reuse; frequency division multiple access; indoor infrared wireless communications; m-sequences; on-off keying; optical orthogonal codes; performance; pulse position modulation; room; time division multiple access; wireless LAN; Base stations; Frequency modulation; Multiaccess communication; Optical fiber communication; Optical modulation; Optical pulses; Phase modulation; Pulse modulation; Time division multiple access; Wireless communication;
Conference_Titel :
Global Telecommunications Conference, 1996. GLOBECOM '96. 'Communications: The Key to Global Prosperity
Conference_Location :
London
Print_ISBN :
0-7803-3336-5
DOI :
10.1109/GLOCOM.1996.591910
