A Power Dissipation Comparison of the R-TDMA and the Slotted-Aloha Wireless MAC protocols
G.R.J. Linnenbank · 1997
In this paper two wireless multiple-access protocols are compared by their power dissipation for the uplink traffic of a wireless networks. After briefly discussing the behaviour of the Slotted Aloha protocol (Abramson, 1985) and the R-TDMA protocol (Linnenbank, 1995), we estimate the energy that is dissipated by the protocols to trasmit a packet. We will show that for general loads, the power dissipation of the R-TDMA protocol is far less than that of the Slotted Aloha protocol. 1 Introduction In recent years more and more mobile wireless equipment is being used. Starting with the mobile wireless telephone and followed by the portable computer, emphasis is made on miniaturizing components to make devices lighter. One of the bottlenecks appears to be the battery that provides the device with energy. The amount of energy stored in the battery must be sufficient to make it worthwhile to carry a mobile communication device with you. However, the smaller the device, the smaller the batter...