General Packet Radio Service OPNET Model
نویسندگان
چکیده
In this paper, we describe a General Packet Radio Service (GPRS) OPNET simulation model and the implementation of the Radio Link Control/Medium Access Control (RLC/MAC) and the Base Station Subsystem GPRS protocol (BSSGP). The RLC/MAC and BSSGP protocols are added to an existing GPRS OPNET model. We have enhanced the existing model by implementing unacknowledged mode of RLC and two phase access mechanisms. The implementation of BSSGP enables the exchange of radio-related and data messages from Base Station Subsystem (BSS) to Serving GPRS Support Node (SGSN). We have verified the effect of the new implementation on the endto-end delay and cell update mechanism by performing OPNET simulations. The enhanced model was tested using a network with 17 mobile stations.
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