Hop selection in peer-to-peer WPAN networks

Currently, wireless technology is revolutionizing the way we share information and communicate. The demands for mobility have made wireless technology the primary source for voice communication. Code-division multiple-access (CDMA) is a very popular spread spectrum application due to its claims of low transmission power, higher system capacity, ability to mitigate multipath fading and user interference. In that case, frequency-hopping code-division multiple access (FH-CDMA) has received considerable attention over the past few years. This technique will allow a better performance over a fading channel, message privacy, and immunity to narrowband interference. This paper addresses the characteristics of FH-CDMA in WPAN networks, with an emphasis on frequency-hopped Bluetooth systems. A performance evaluation of FH-CDMA is discussed and simulated. The analysis shows the interaction between the designed parameters and their effect on the network system. Most specifically, the FH-CDMA scheme provides frequency and temporal diversity to combat the effects of interference.

Designing channel incentives to overcome reseller rejection

As more and more products are distributed through independent channel resellers, suppliers find it increasingly difficult to craft highly motivational incentive packages. Instead, many suppliers' product lines are neglected by resellers in deference to more compatible incentive offers. This paper studies the many aspects of incentive rejection and incentive compatibility and prescribes a four-step, theory-based process to help suppliers craft attractive incentive programs. The process involves identifying resellers' performance needs, recognizing how each need suggests a different basis for incentive rejection, and designing an incentive package such that the incentives support specific reseller needs. Also, unique channel conditions are considered.

Being a successful and valuable peer reviewer

Purpose – The purpose of this editorial is to announce the winners of the EJM Reviewer of the Year awards, and also to make some observations about successful and effective practice in reviewing scholarly work. Design/methodology/approach – The authors draw from their own experience as reviewers, authors, and editors to provide a set of considerations for those involved in the review process. Findings – The authors propose a set of guidelines for reviewers who wish to make the most of their role in the scientific method. Research limitations/implications – These thoughts are preliminary, and are drawn from personal experiences rather than a wide-ranging survey of stakeholders. Practical implications – Marketing researchers should ensure that they understand their role in the scholarly reviewing process, and that they provide timely and constructive comments on their areas of expertise. Originality/value – This piece should offer marketing researchers considerable value in the context of their own efforts, both as authors and reviewer.

The 'Healthy Passport' intervention with older people in an English urban environment:effects of incentives and peer-group organisers in promoting healthy living

This paper reports the evaluation of the effectiveness of incentives (viz. points and prizes) and of peer-group organisers ('older people's champions') in the outcomes of a health-improvement programme for people aged 50 + years in a multi-ethnic district of the West Midlands, England. Health promotion activities Were provided, and adherence, outcome variables and barriers to adherence were assessed over six months, using a `passport' format. Those aged in the fifties and of Asian origin Were under represented, but people of Afro-Caribbean origin were well represented and proportionately most likely to stay in the project. Those of greater age and With more illness were most likely to drop out. There were significant improvements in exercise, diet and the uptake of influenza vaccines and eyesight tests, but slighter improvements in wellbeing. Positive outcomes related to the incentives and to liking the format. The number of reported barriers was associated with lower involvement and lack of change, as was finding activities too difficult, the level of understanding, and transport and mobility problems, but when these were controlled, age did not predict involvement. Enjoying the scheme was related to positive changes, and this was associated with support from the older people's champions.