Multipath Propagation Characterization for Terrestrial Mobile and Fixed Microwave Communications
نویسندگان
چکیده
منابع مشابه
Dynamic Characteristics of a Narrowband Land Mobile Communication Channel
Land mobile communication signals are subject to propagation effects that result in variation of received signal amplitude and phase. The most rapid signal variations are the result of multipath propagation and occur with sufficient severity to make reception difficult. At microwave frequencies, the narrowband (30-kHz) channel is considered nondispersive. It will experience flat amplitude fadin...
متن کاملCode division multiple access schemes for terrestrial and satellite mobile communication networks: Modeling and performance evaluation
This paper deals with the modeling and performance evaluation of different Code Division Multiple Access schemes suitable for applications in terrestrial and satellite mobile cornrnunication networks. The use of particular propagation channel models and the relative sensitivity of different demodulation schemes to their parameters are the subject the paper is focused on. In particular, an exten...
متن کاملCanonical space-time processing for wireless communications
A canonical space–time characterization of mobile wireless channels is introduced in terms of a fixed basis that is independent of the true channel parameters. The basis captures the essential degrees of freedom in the received signal using discrete multipath delays, Doppler shifts, and directions of arrival (DOA). The canonical representation provides a robust representation of the propagation...
متن کاملAntenna beam tilting effects in fixed and mobile communication links
Several remedial measures like space diversity, frequency diversity, route diversity, increase in antenna height, antenna tilting, etc. have been tried by many workers to overcome the debilitating effect of multipath fading in fixed line-of-sight microwave and mobile communication links. Among these remedial measures, diversity techniques have been extensively studied in terms of improvement fa...
متن کاملCDMA overlay situations for microcellular mobile communications
Absmucr-Direct sequence code division multiple access commun-kations is a promising approach to cellular mobile communications , whkh operates in an environment characterized by mul-tipath Rician fading. In this paper, the CDMA network is assumed to share common spectrum with a narrowband microwave user. Because of the presence of the narrowband waveform, an interference suppression filter at e...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2002