Dynamic resource allocation scheme with maximum channel utilization in GSM/GPRS networks

An improved dynamic resource de-allocation scheme with and without maximum channels for GPRS packets (MCP) in GSM/GPRS networks is proposed and analyzed. In GPRS, multiple channels may be allocated to a user to increase the transmission rate. When there are no free channels in the system, some of the multiple channels allocated to the user may be de-allocated to serve other calls with higher priority. When a channel is released, the system should adjust the channel allocation to achieve better performance. The paper proposes a de-allocation scheme with MCP, which allows a packet-holding user to occupy idle channels for transmission when some channels are released. It is shown that, compared with the existing de-allocation scheme, the proposed de-allocation scheme with MCP can further reduce voice blocking probability, achieve lower packet blocking probability, higher channel utilization and smaller packet transmission time.