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<p>This paper presents a novel proxy architecture for wireless application protocol (WAP) <math alttext="$2.0$">  <mrow>   <mn>2.0</mn>  </mrow> </math> employing an advanced data compression scheme. Though optional in WAP <math alttext="$2.0$">  <mrow>   <mn>2.0</mn>  </mrow> </math>, a proxy can isolate the wireless from the wired domain to prevent error propagations  and to eliminate wireless session delays (WSD) by enabling long-lived connections between the proxy and wireless terminals. The proposed data compression scheme combines content compression together with robust header compression (ROHC), which minimizes the air-interface traffic data, thus significantly reduces the wireless access time. By using the content compression at the transport layer, it also enables TLS tunneling, which overcomes the end-to-end security problem in WAP 1.x. Performance evaluations show that while WAP 1.x is optimized for narrowband wireless channels, WAP <math alttext="$2.0$">  <mrow>   <mn>2.0</mn>  </mrow> </math> utilizing TCP/IP outperforms WAP 1.x over wideband wireless channels even without compression. The proposed data compression scheme reduces the wireless access time of WAP <math alttext="$2.0$">  <mrow>   <mn>2.0</mn>  </mrow> </math> by over <math alttext="$45\%$">  <mrow>   <mn>45</mn><mo>&#37;</mo>  </mrow> </math> in CDMA2000 1XRTT channels, and in low-speed IS-95 channels, substantially reduces access time to give comparable performance to WAP 1.x. The performance enhancement is mainly contributed by the reply content compression, with ROHC offering further enhancements.</p

A Proxy Architecture to Enhance the Performance of WAP 2.0 by Data Compression