4Boquete L, Bravo I, Barea R. Telemetry and control system with GSM communications[J]. Microprocessors and Microsystems, 2003, 27(1) : 1 - 8.
5Jiang H. Reliability, costs and delay performance of sending short message service in wireless systems [C]// IEEE International Conference on Universal Personal Communications. Florence : IEEE Press, 1998 : 1073 - 1077.
6XING Jianping, ZHANG Jun, LI Weiye, et al. Vehicle GPS real time monitoring communication system base on GPRS/CSD[C]// The Sixth World Congress on Intelligent Control and Automation. Dalian:IEEE Press. 2006: 8745 - 8749.
7Ghribi B, Logrippo L. Understanding GPRS: The GSM packet radio service[J]. Computer Networks, 2000, 34(5) : 763 - 779.
8Yaiparoj S, Harmantzis F, Gunasekaran V. On the economics of GPRS networks with Wi-Fi integration[J]. European Journal of Operational Research, 2006, 187(3):1459 - 1475.
9ZHANG Yan, Soong B H. Performance evaluation of GSM/GPRS networks with channel re-allocation scheme [J]. Communications Letters, 2004, 8(5):280-282.
10Mishra A. Performance and architecture of SGSN and GGSN of general packet radio service (GPRS) [C]// Global Telecommunications Conference GLOBECOM'01 IEEE. San Antonio, TX: IEEE Press, 2001:3494 - 3498.
