Title :
On the performance of the DQRUMA with different scheduling algorithms for multimedia traffic in an indoor environment for W-ATM networks
Author :
Verikoukis, Ch V. ; Olmos, J.J.
Author_Institution :
Dept. de Teoria del Senyal i Comunicacions, Univ. Politecnica de Catalunya, Barcelona, Spain
Abstract :
The performance of the DQRUMA MAC protocol for multimedia traffic in a realistic indoor environment using the guarantee bandwidth minimising delay (GBMD) scheduling policy is evaluated by simulations. The efficiency of the GBMD is compared to the corresponding with the FCFS with priorities and the RR with priorities. The analysis was carried out for a typical multicarrier modulation scheme (OFDM) with QPSK modulation on each carrier. The hidden Markov model (HMM) is used for modelling the physical layer of the system, while a type-II hybrid-ARQ protocol based on punctured RS codes is applied in the LLC layer. The performance of each ATM traffic service in terms of mean delay, cell loss rate (CLR), and the standard deviation, the 99.9 percentile, and pdf of the delay is presented
Keywords :
OFDM modulation; Reed-Solomon codes; access protocols; asynchronous transfer mode; automatic repeat request; hidden Markov models; indoor radio; multimedia communication; packet radio networks; probability; quadrature phase shift keying; quality of service; scheduling; telecommunication traffic; CLR; DQRUMA; GBMD scheduling; LLC layer; MAC protocol; OFDM; QPSK modulation; W-ATM networks; cell loss rate; guarantee bandwidth minimising delay; hidden Markov model; indoor environment; multicarrier modulation scheme; multimedia traffic; pdf; performance; punctured RS codes; scheduling algorithms; simulations; traffic service; type-II hybrid-ARQ protocol; Bandwidth; Delay; Hidden Markov models; Indoor environments; Media Access Protocol; OFDM modulation; Performance loss; Physical layer; Quadrature phase shift keying; Traffic control;
Conference_Titel :
Communications and Vehicular Technology, 2000. SCVT-200. Symposium on
Conference_Location :
Leuven
Print_ISBN :
0-7803-6684-0
DOI :
10.1109/SCVT.2000.923347
