Using SigComp and ROHC in Wireless Networks Priyanka Rawat, Laurent Toutain, and Ana Minaburo GET/ENST Bretagne, Rue de la Chˆataigneraie, CS 17607, 35576.

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Using SigComp and ROHC in Wireless Networks Priyanka Rawat, Laurent Toutain, and Ana Minaburo GET/ENST Bretagne, Rue de la Chˆataigneraie, CS 17607, Cesson S´evign´e cedex, France {priyanka.rawat, bretagne.fr and 1

Introduction A typical SIP message may range from a few hundred bytes up to two thousand bytes or more. Use of SigComp (SIP signaling compression mechanism) and ROHC (Robust Header Compression mechanism) schemes reduces the signaling and the protocol header overhead, respectively. 2

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Overhead for different SIP packets 10

SigComp and ROHC 11

Compare different compression algorithms 12

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