Title :
Optimization of the DQRUMA MAC protocol for multimedia traffic in an OFDM based W-ATM system
Author :
Verikoukis, Ch.V.
Author_Institution :
Dept. of Signal Theory & Commun., Tech. Univ. of Catalonia, Barcelona
Abstract :
This paper evaluates by simulations the performance of the DQRUMA MAC protocol using as backlog algorithm the pseudo-bayesian algorithm in a W-ATM system. The protocol has been simulated in conjunction with a type-II Hybrid-ARQ protocol based on punctured R-S codes. The analysis was carried out for a OFDM scheme with QPSK modulation on each carrier. The Hidden Markov Model (HMM) is used for modeling the physical layer of the system
Keywords :
Bayes methods; OFDM modulation; Reed-Solomon codes; access protocols; asynchronous transfer mode; hidden Markov models; multimedia communication; quadrature phase shift keying; radio networks; telecommunication traffic; DQRUMA MAC protocol; OFDM; QPSK modulation; backlog algorithm; hidden Markov model; multimedia traffic; optimization; pseudo-Bayesian algorithm; punctured R-S code; type-II Hybrid-ARQ protocol; wireless-ATM system; Access protocols; Broadcasting; Hidden Markov models; Media Access Protocol; Multimedia systems; OFDM modulation; Physical layer; Probability; Quadrature phase shift keying; Traffic control;
Conference_Titel :
Circuits and Systems, 2001. ISCAS 2001. The 2001 IEEE International Symposium on
Conference_Location :
Sydney, NSW
Print_ISBN :
0-7803-6685-9
DOI :
10.1109/ISCAS.2001.921076
