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Existing compressive sensing techniques mostly consider the sparsity of signals in one dimension. However, a very important case that has rarely been studied is when the signal of interest is time varying and signal coefficients have correlation in time. Our proposed algorithm in this paper is a structure-aware version of the compressive sensing reconstruction via belief propagation proposed by Baron...
Recently, rateless codes have been employed in packet forwarding protocols of delay tolerant networks (DTNs) to improve the network reliability and to cope with packet loss. However, in intermediate range, where the number of received coded packets is less than the number of source packets, rateless decoder cannot recover any source packets. However, in some applications such as multimedia content...
In this paper, we design several degree distributions for rateless codes with optimum intermediate packet recovery rates. In rateless coding, the employed degree distribution significantly affects the packet recovery rate. Each degree distribution is designed based on the number of message packets, k, and desired coding overhead, ??, which is the ratio of the number of received packets, n, to k, i...
This paper proposes a rateless coding for efficient MPEG video transmission over loss prone networks. An MPEG video stream is comprised of various frame types, which contribute differently to the displayed video quality. We employ rateless codes with unequal error protection (UEP) property to have more protection on frames with higher influence on the quality of the displayed video. We define protection...
In this paper a new reliable and low-latency video-on-demand (VOD) broadcasting protocol is proposed. Most existing VOD broadcasting protocols have no protection against frame loss. In order to acquire loss-resiliency, we encode each segment of a partitioned video with an unequal error protection (UEP) rateless code. Using this error correction encoding scheme beside gaining error resiliency, the...
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