IntServ and DiffServ for Wireless Networks (4/5)
Modifications to DiffServ Scheme
- Need for signaling Information
- static provisioning is not enough because user mobility necessitates dynamic allocation of resource
- the sender must know the limitations of the wireless link for better performance
- information on local conditions need to be sent occasionally between the BS and the mobile
- The modified ICMP protocol is scalable and generates reduced control traffic when compare to RSVP