Title :
Multimedia Hotspots Supporting Wireless LAN and Cellular CDMA Access
Author :
Yuen, Roland ; Fernando, Xavier N.
Author_Institution :
Ryerson Univ., Toronto, ON
Abstract :
Recent boom in wireless hot-spots has triggered interest in optical fiber based wireless access schemes. An enhanced hot-spot will support both IEEE 802.11 wireless LAN and cellular radio services. Simultaneous transmission of these radio signals over a single radio-over-fiber (ROF) link is possible in a subcarrier multiplexed manner. However, link design in this multi-system scenario is a complex task. There are number of quality measures such as signal to noise, distortion and interference ratios involved both in the optical link and in the air interface. These are functions of several parameters such as the fiber length, bandwidth, modulation depth, radio cell size and relative RF power of both systems. In this paper we analyze the uplink and show a way to decide the cumulative optical modulation index (mu) and the RF power ratio (T) that will yield the best performance for both systems.
Keywords :
cellular radio; code division multiple access; multimedia communication; optical fibre LAN; optical fibre subscriber loops; optical modulation; radio-over-fibre; subcarrier multiplexing; wireless LAN; IEEE 802.11 wireless LAN; ROF link; air interface; cellular CDMA access; cumulative optical modulation index; multimedia hotspot; multisystem scenario; optical fiber based wireless access scheme; radio signal; radio-over-fiber; subcarrier multiplexing; Distortion measurement; Land mobile radio cellular systems; Multiaccess communication; Noise measurement; Optical distortion; Optical fibers; Optical noise; Radio frequency; Signal to noise ratio; Wireless LAN;
Conference_Titel :
Industrial and Information Systems, First International Conference on
Conference_Location :
Peradeniya
Print_ISBN :
1-4244-0322-7
DOI :
10.1109/ICIIS.2006.365755
