TY  - BOOK
AU  - Liyanagama,Deepa L.
AU  - O'Farrell,T.
AU  - Lochmann,S.
AU  - Takahashi,K.
ED  - Norwegian Agency for International Development, Norway,
TI  - An investigation of a hybrid spread-spectrum CSMA-CD protocol for high-speed integrated services local area networks
T2  - Thesis
PY  - 1992///
CY  - Bangkok
PB  - Asian Institute of Technology
KW  - Spread spectrum communications
KW  - Local area networks (Computer networks)
N1  - A thesis submitted in partial fulfillment of the requirement for the degree of Master of  Engineering, School of Engineering and Technology; Thesis (M.Eng.) - Asian Institute of Technology,1992
N2  - This study is aimed at investigating the performance of a Hybrid Code Division  Multiple Access I Carrier-Sense Multiple Access with Collision Detection Protocol  [CDMA/CSMA-CD]. This hybrid protocol employs CDMA embedded in a carrier-sensing  protocol with overload detection and is referred to as Carrier/Channel-load Sense Spread Spectrum with collision detection (CSSS/CD). This study concentrated on a one-persistent  form of channel access. Depending on the channel access strategy, two different protocols,  lP-CSSS/CD-1 and lP-CSSS/CD-M were identified. The network throughput was analysed  for both of these protocols. The effect of bit errors, caused by multiuser interference, was  also investigated for the 1 P-CSSS/CD-1 protocol with fixed length packets. With threshold  approximations for the channel capacity, the network was modelled as a discrete-time semi Markov process. Results are presented showing the effects of network parameters on the  throughput. These results are compared with the performance of lP-CSMA/CD [Ethernet]  under the same operating conditions and it is shown that a real capacity gain over Ethernet  is achieved with the spread-spectrum protocol. An additional advantage of the spread spectrum protocol is the low packet delay offered by the CDMA effect. System stability was  evaluated using a general user model
UR  -  http://203.159.5.9/ait-thesis/detail.php?q=B17497
ER  -