Title :
Bi-directional equalization technique for TDMA communication systems over land mobile radio channels
Author_Institution :
GTE Lab., Waltham, MA, USA
Abstract :
An adaptive equalization technique which uses information in the adjacent time slot in a time-division multiple access (TDMA) system and is able to estimate the location of a deep fade within a time slot is proposed. The aim is to improve the overall digital transmission system performance over time varying land mobile radio channels. Application of the technique to the proposed Telecommunications Industry Association Northern American digital cellular standards (IS-54) is investigated. The simulation results show that without diversity and with very low complexity, a signal to noise power ratio of only 16 dB (Es/N0), which is 6-dB lower than the specification, is needed to achieve the performance requirement of IS-54, 3% bit error rate at Es/N0 equal to 22 dB and vehicle speed equal to 60 mph
Keywords :
digital radio systems; equalisers; error statistics; fading; mobile radio systems; telecommunication channels; time division multiple access; 16 dB; 60 mph; IS-54; Northern American digital cellular standards; TDMA communication systems; Telecommunications Industry Association; adaptive equalization technique; adjacent time slot; bi-directional equalisation technique; bit error rate; deep fade location estimation; digital transmission system performance; land mobile radio channels; performance requirement; signal to noise power ratio; time varying channels; time-division multiple access; vehicle speed; Adaptive equalizers; Bidirectional control; Bit error rate; Communication industry; Land mobile radio; Signal to noise ratio; System performance; Telecommunication standards; Time division multiple access; Time varying systems;
Conference_Titel :
Global Telecommunications Conference, 1991. GLOBECOM '91. 'Countdown to the New Millennium. Featuring a Mini-Theme on: Personal Communications Services
Conference_Location :
Phoenix, AZ
Print_ISBN :
0-87942-697-7
DOI :
10.1109/GLOCOM.1991.188610
