Application Layer Packet Merging to Improve Call Capacity in a 802.11 Based Intercom

We propose to use an 802.11 WLAN for a wireless intercom kind of scenario for enterprises. Replicating ordinary VoIP schemes leads to exceedingly low capacity. A scheme involving application layer merging of consecutive VoIP packets in the same host has been investigated to improve the capacity of VoIP over 802.11 WLANs. A simple analysis has been performed and simulated results have been presented to validate the idea. It has been shown through analysis and simulations that transmitting VoIP packets less often will reduce the packet congestion at the AP and hence lead to greater capacity for the VoIP calls. We use this fact to merge several of the VoIP packets at the application layer of the hosts themselves. At the destination, these super-packets can then be dissected to recover the original packets