Title :
TDMA-based broadband fixed radio access: performance and implementation issues of adaptive equalizers
Author :
Drewes, Christian ; Hasholzner, Ralph ; Hammerschmidt, Joachim S.
Author_Institution :
Inst. for Integrated Circuits, Tech. Univ. Munchen, Germany
Abstract :
The performance of adaptive equalization strategies for future broadband fixed ATM radio access systems is investigated. The LMS and zero forcing algorithms are suitable for the downlink, whereas for the uplink, a fast converging RLS algorithm has to be employed. Furthermore, a hybrid F/TDMA has to be implemented to transmit the assumed 156 Mbit/s in the uplink. A complexity analysis comparing different RLS algorithms is given, showing that the QR-RLS algorithm is always a good option for the uplink of the application in mind
Keywords :
adaptive equalisers; asynchronous transfer mode; broadband networks; computational complexity; frequency division multiple access; least mean squares methods; subscriber loops; time division multiple access; 156 Mbit/s; LMS; QR-RLS algorithm; RLS algorithm; TDMA-based broadband fixed radio access; adaptive equalizers; complexity analysis; downlink; hybrid FDMA/TDMA; implementation; performance; quadratic residue RLS; recursive least squares; uplink; zero forcing algorithm; Adaptive equalizers; Asynchronous transfer mode; Cable TV; Coaxial cables; Costs; Hybrid fiber coaxial cables; Multiaccess communication; Optical fiber cables; Resonance light scattering; Time division multiple access;
Conference_Titel :
Broadband Communications, 1998. Accessing, Transmission, Networking. Proceedings. 1998 International Zurich Seminar on
Conference_Location :
Zurich
Print_ISBN :
0-7803-3893-6
DOI :
10.1109/IZSBC.1998.670265
