Traditional collaborative work environments are often proprietary systems. However, the demands of todays e-worker are such that they use their own tools and services and collaborate across company boundaries making highly integrated solutions less feasible. Service oriented computing provides an obvious solution here, in providing mechanisms to loosely integrate many tools and services. In thi...

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MC-CDMA is the most promising technique for high bit rate and high capacity transmission in wireless communication. One of the challenging issues of MC-CDMA system is very high PAPR due to large number of sub-carriers which reduces the system efficiency. This paper describes the various PAPR reduction techniques for MC-CDMA system. Criterion for the selection of PAPR reduction technique and als...

High peak to average power ratio of the transmit signal is a major drawback of OFDM systems. After defining the PAPR and analyzing its statistical properties, some of the most representative PAPRreduction techniques available in the literature are reviewed in detail. Several methods have been proposed to reduce the peak power of OFDM signals. In this paper the effectiveness of some recently pro...

The paper discusses organisational challenges single companies face while joining collaborative enterprise networks (EN). Following an organisational design approach in organisational differentiation and integration in EN, organisational challenges are identified. Based on steps for designing and implementing quality management systems (QMS), an initial reference model is given as potential bas...