Retransmission with error correction capability and opportunistic user scheduling are two of the cross layer protocols that hold promise to substantially improve the performance of wireless networks. In this thesis, we do a performance analysis of Hybrid Automatic Repeat reQuest (HARQ), a joint error correction and retransmission protocol, and downlink multiuser diversity opportunistic scheduli...

In this project report, we present three practical schemes of lossy compression for Laplacian source and L-1 distortion: The first scheme generalizes the successive refinement scheme. The second scheme modifies the first scheme by using only ternary alphabet. The third scheme encodes only the indices of maximum and minimum component. The whole of suggested schemes have a rateless property as we...

As intelligent content management of IPTV moves popular material nearer to the end-user, applicationlayer channel coding schemes, involving retransmission of extra redundant data, become attractive as a result of the reduced latency. Application-layer, adaptive rateless channel coding is exploited in this paper’s scheme to reconstruct streamed video across an IEEE 802.16e (mobile WiMAX) channel...

Recent advances in forward error correction and scalable video coding enable new approaches for robust, distributed streaming in Mobile Ad Hoc Networks (MANETs). This paper presents an approach for distribution of real time video by uncoordinated peer-to-peer relay or source nodes in an overlay network on top of a MANET. The approach proposed here allows for distributed, rate-distortion optimiz...

Cloud computing is a promising computing model that enables convenient and on-demand network access to a shared pool of configurable computing resources. The first offered cloud service is moving data into the cloud: data owners let cloud service providers host their data on cloud servers and data consumers can access the data from the cloud servers. This new paradigm of data storage service al...

the binary and ternary codes spanned by the rows of the point by block incidence matrices of some 2-designs and their complementary and orthogonal designs are studied. a new method is also introduced to study optimal codes.

we present an approach to design of fault tolerant computing systems. in this paper, a technique is employed that enable the combination of several codes, in order to obtain flexibility in the design of error correcting codes. code combining techniques are very effective, which one of these codes are turbo codes. the algorithm-based fault tolerance techniques that to detect errors rely on the c...