Title :
Multi-level modulation in the indoors leaky feeder environment
Author :
Torrance, J.M. ; Keller, T. ; Hanzo, Lajos
Author_Institution :
Dept. of Electron. & Comput. Sci., Southampton Univ., UK
fDate :
28 Apr-1 May 1996
Abstract :
Leaky feeders offer the prospect of high average signal to noise ratio (SNR) in an indoors environment. The signal is transmitted from a series of slots acting as antennae and superposition of the paths results in fades of up to 25 dB below the mean signal level. A model is presented for the propagation path between the leaky feeder base station (BS) antenna and a single omnidirectional receiver antenna, which was verified using measurements. The bit error rate (BER) performance of such a system is investigated for 1, 2 and 4 bits per symbol, coherent and non-coherent modulation schemes. These are compared with the performance of a more conventional indoor BS antenna
Keywords :
coaxial cables; error statistics; indoor radio; leaky wave antennas; modulation; radiowave propagation; receiving antennas; transmitting antennas; DECT system; bit error rate performance; coaxial cables; coherent modulation; high average SNR; indoor BS antenna; indoors leaky feeder environment; leaky feeder base station antenna; leaky feeders; mean signal level; measurements; multilevel modulation; noncoherent modulation; omnidirectional receiver antenna; propagation path; Antenna feeds; Antenna measurements; Antennas and propagation; Base stations; Bit error rate; Indoor environments; Receiving antennas; Signal to noise ratio; Slot antennas; Transmitting antennas;
Conference_Titel :
Vehicular Technology Conference, 1996. Mobile Technology for the Human Race., IEEE 46th
Conference_Location :
Atlanta, GA
Print_ISBN :
0-7803-3157-5
DOI :
10.1109/VETEC.1996.504019
