In this paper, we consider a fixed wireless cellular network that uses dynamic time division duplex (D-TDD). We analyze the signal-to-interference ratio (SIR) outage performance of a D-TDD fixed cellular system, and propose a scheme to improve the outage probability performance. First, outage probability is evaluated using an analytical model, when omnidirectional antennas are deployed at a bas...

A triple slotted aerofoil following the Handley Page 44F design was tested at City University London T2 wind tunnel. The model allowed the study of a fixed triple slotted wing as well as investigation of the effects of isolated slots at different locations along the chord. PIV measurements were performed within the chord Reynolds number range in between approximately 200,000-400,000. The model ...

This paper proposes a unified matrix-analytic approach to characterize the output processes of general discrete-time lossless/lossy queueing systems in which time is synchronized/slotted into fixed length intervals called slots. The arrival process can be continuousor discrete-time Markovian processes. It can be either renewal or non-renewal. The service of a customer commences at the beginning...

This paper attempts to apply an adaptive network-based fuzzy inference system (ANFIS) for analysis of the resonant frequency of a single-layer single-patch microstrip rectangular patch antenna with two equal size slots which are placed on the patch in the form of parallel to resonance edges. The resonant frequency is calculated as the position of the slots is shifted from the right endpoint to ...

Experimental results and conclusions: Several designs with the feed position at point A for left-hand CP operation were constructed and experimentally studied. Fig. 2 shows the measured return loss against frequency for the cases with e = 0, 8, 10.5 and 1 1.5 mm; the case with e = 0 represents a corresponding regular circularly polarised microstrip antenna with an unslotted ground plane. The co...

In this work we present an energy efficient leader election protocol for anonymous radio network populated with n mobile stations. Previously, Nakano and Olariu have presented a leader election protocol that terminates, with probability exceeding 1 − f ( f ≥ 1), in log log n + o(log log n) + O(log f ) time slots [14]. As the above protocol works under the assumption that every station has the a...

Design of efficient medium access control (MAC) protocols with both high throughput performance and highdegree of fairness performance is a major focus in distributed contention-based MAC protocol research. In this paper, we propose a novel and efficient contention-based MAC protocol for wireless local area networks, namely, the Fast Collision Resolution (FCR) algorithm. This algorithm is devel...

The article discusses the issue of design solution for dredging slots production in Ob River section. An important challenge and straightening works is stability. experience researching considered, a brief review literature presented. necessity developing production, Field data were obtained analyzed course track on cripples. A Design proposed. ways further research stability are outlined.