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IEEE 802.11 provides different data rates for a device to utilize based on the channel conditions. Rate adaptation is an important feature of wireless LANs and most of the work in this area use frame error rate as an indicator of signal to noise ratio (SNR). SNR is then used to base the choice of data rate used for transmission. In infrastructure based 802.11 LANs, frames can be lost due to collisions...
Adaptive packet sizing techniques are widely used in wireless communication to enhance the link reliability. Typically, shorter packets are less error prone than longer packets. Adaptive packet size technique is used in IEEE 802.11 wireless network to enhance link reliability and packet delivery ratio. In this work, we adopt this technique to work in IEEE 802.15.4 based networks, and specifically...
In this paper, we study the cross-layer (between MAC and PHY) design problem for IEEE 802.11 wireless networks. It is focused on the design of the optimal length of the frame body. The following results are obtained: 1) The optimal length of the frame body in logarithmic scale, expressed as log Lf,opt, can be coarsely approximated by a linear function of the signal-to-noise power ratio (SNR) Eb/N0...
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