An AAL2 link transmission scheme is considered as a promising bandwidth-efficient voice/data transmission method in BS-BSC links of third generation radio access networks. To guarantee low delay requirement of voice traffic, voice delay restriction methods are introduced in the AAL2 link transmission scheme. That is, a timer is used in the loading of voice ATM cell payload for limiting cell pac...

Optical all-pass filters, which generate strong on-resonance optical delay while maintaining a unity transmission coefficient throughout the entire resonant bandwidth, are of great importance for constructing delay lines in optical buffer applications. We provide an analysis of optical delay lines based upon cascading multiple stages of all-pass filter structures. We show that the maximum capac...

This paper addresses the problem of time-varying communication delay in force reflecting bilateral teleoperation. The problem is motivated by the increasing use of the Internet as a communication medium where the time delay varies depending on factors such as congestion, bandwidth, or distance. The well-known scattering formalism introduced in (Anderson and Spong, 1989) preserves passivity of t...

A novel service-based soft HARQ scheme for Machine Type Communication (MTC) is proposed in this paper. Conventionally, the repetition number for each HARQ retransmission is fixed. In contrast, in our soft HARQ scheme the repetition number is selected to optimize specific objective functions corresponding to diverse service demands. Based on this, three soft HARQ strategies, namely Strategies EM...

Network coding has shown a good potential for improving network throughput and, recently, has been used in multimedia transmission over wireless networks. In addition to guaranteed throughput, real-time multimedia transmission requires bounded delay, delay variation, and packet loss. This paper presents RTOC, a new XOR-based opportunistic network coding architecture for real-time data transmiss...

We investigate the fundamental relationship between node density and transmission delay in Large-scale wireless networks with unreliable links from percolation perspective. Previous works[7][2][6] have already showed the relationship between transmission delay and distance from source to destination. However, it still remains as an open question how transmission delay varies in accordance with ...

In this paper, field measurements carried out in a suburban SFN network with two synchronized transmitters are reported. It is found that the radio signal coverage of the distributed transmission scheme is distinctly improved when compared to a single transmitter system. The path loss gain and improvement associated to the SFN scheme are obtained as well as the multipath channel parameters incl...

In this paper we analyze the transmission and time delay properties of light propagating through a microring resonator (MRR) consisting of a solid core waveguide surrounded by an atomic vapor cladding. Using the atomic effective susceptibility of Rubidium we derive the complex transmission spectrum of the integrated system. We show, that when the system is under-coupled, the transmission can ex...

In recent times, Wireless Sensor Networks (WSNs) is extensively used in numerous applications with enormously varying requirements and uniqueness. Due to the dynamically changing topology, improving Quality of Services (QOS) in WSNs has becomes hard. WSN have several different constraints in route selection such as energy, availability, computational power, buffer space, throughput etc. In orde...