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ZJUS-A
Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering)  2006, Vol. 7 Issue (4 ): 1-    DOI: 10.1631/jzus.2006.A0477
    
Redundancy Elimination in GPRS network
Qiu Qin-long, Zhang Dong-mei, Ma Jian, Zhang Da-jiang
National Key Lab of Switching Technology and Telecommunication Network, Beijing University of Posts & Telecommunications, Beijing 100876, China; Nokia Research Centre, Beijing 100013, China
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Abstract  The mechanisms of TCP’s retransmission and reset will result in redundant packets. These redundant packets are often sent unnecessarily to the user over a slow last-hop link delaying useful traffic. This is a problem for wide-area wireless links, such as General Packet Radio Service (GPRS), because unnecessary transmissions waste already limited radio bandwidth, battery power at the mobile terminal and incurs monetary cost due to charging by data volume. The paper first describes a GPRS model, then discusses how to eliminate the redundant packets in GPRS network and presents the simulation results in Network Simulation 2 (NS 2). The more traffic is, the more the network can benefit. In heavy traffic, it can even get more than 30% improvement in throughput. Average delay and loss percent are also lowered.

Key words： GPRS      TCP      Redundancy Elimination      Network Simulation 2 (NS 2)     
Received: 01 March 2005     
CLC:  TU375  
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Qiu Qin-long
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Zhang Da-jiang
Cite this article:

Qiu Qin-long, Zhang Dong-mei, Ma Jian, Zhang Da-jiang. Redundancy Elimination in GPRS network. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2006, 7(4 ): 1-.

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http://www.zjujournals.com/xueshu/zjus-a/10.1631/jzus.2006.A0477     OR     http://www.zjujournals.com/xueshu/zjus-a/Y2006/V7/I4 /1

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