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Multiple-input multiple-output (MIMO) systems are a promising candidate for future wireless communications systems. It is the radio propagation channel that determines crucially the characteristics of the entire MIMO system. Therefore, accurate modeling of MIMO channels is an important requisite for MIMO system design, simulation, and deployment. Moreover, the multidimensional statistical behaviour...
During the last few years the application scope of peer-to-peer systems has been notably extended. While the problems of scalable data localization have been exhaustively addressed, one may notice that the problem of multicast cost and latency delays in very large, global scale peer-to-peer networks still remains inadequately considered. Many large scale applications will suffer from this multicast...
Cross Virtual Concatenation is the new technique proposed for bandwidth efficient transmission of data over SDH networks. SDH networks came into existence for reliable voice transmission. As the demand of data traffic grew in wide area networks, new technologies were developed and standardized by ITU for data transmission over SDH networks. The technologies used namely GFP (generic framing procedure),...
Here, we propose a novel tree based interleaver (TBI) for generating user specific chip-level interleaving sequences for various users in an IDMA system, which reduces computational complexity drastically. This interleaver also solves the memory cost problem and reduces the amount of information exchange between mobile stations and base stations required to specify the interleaver. Simulation results...
The IEEE 802.16 standard, also known as WiMAX, has emerged as an exciting technology for broadband wireless communications with potentials to offer high throughput and support high bandwidth demanding applications. WiMAX, however, has yet to prove its effectiveness when the end terminals are not fixed and have the capacity to move from one place to another at different speeds. Recent studies suggest...
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