Title :
Minimum duration outages for diversity systems
Author :
Mukherjee, Sayandev ; Viswanathan, Harish
Author_Institution :
Crawford Hill Lab., AT&T Bell Labs., Holmdel, NJ, USA
Abstract :
Properties of time dependent outages, defined as the signal-to-interference ratio (SIR) going below a certain threshold and staying there longer than a certain “minimum duration”, have been determined for Rayleigh and log-normal shadowing channels based on the received signal envelope. In this paper, we consider time dependent outages for systems with diversity reception such as antenna diversity systems and spread spectrum systems with RAKE receivers. We introduce a new notion of outage that is based on the baseband SIR after diversity combining. Results from the theory of χ2 processes are applied to derive the outage duration statistics
Keywords :
Rayleigh channels; diversity reception; log normal distribution; radio receivers; radiofrequency interference; spread spectrum communication; statistical analysis; χ2 processes; RAKE receivers; Rayleigh channel; antenna diversity systems; baseband SIR; diversity combining; diversity reception; log-normal shadowing channel; minimum duration outages; outage duration statistics; outage probability; received signal envelope; signal-to-interference ratio; spread spectrum systems; time dependent outages; Baseband; Diversity reception; Fading; Laboratories; Multipath channels; Receiving antennas; Shadow mapping; Spread spectrum communication; Statistics; Wireless communication;
Conference_Titel :
Global Telecommunications Conference, 1998. GLOBECOM 1998. The Bridge to Global Integration. IEEE
Conference_Location :
Sydney,NSW
Print_ISBN :
0-7803-4984-9
DOI :
10.1109/GLOCOM.1998.775995
