wireless channels

Application layer ARQ for protecting video packets over an indoor MIMO-OFDM link with correlated block fading

The quality of experience (QoE) of IP-packetized streaming video is affected by both packet loss and packet delay variations. When the network delivering the video content contains a wireless link, occasional deep fades give rise to bursts of packet …

Moderate deviations of retransmission buffers over a wireless fading channel

We study the buffer performance of retransmission protocols over a wireless link. The channel gain is modeled as a discrete-time complex Gaussian model. The advantage of this channel model over simpler alternatives (such as finite-state Markov …

Optimal channel and time-of-arrival estimation for IR-UWB in the presence of pulse overlap

We show that the common approach to channel and Time-of-Arrival (ToA) estimation for Impulse-Radio Ultra WideBand (IR-UWB), where the occurrence of pulse overlap is ignored, is bound to lead to considerable estimation errors in the presence of pulse …