We consider multihop communications on optical torus networks with time–division multiplexing where logical topologies are realized on top of the physical network to improve the communication performance. The logical topologies reduce the number of intermediate hops at the cost of a larger multiplexing degree. On the one hand, the larger multiplexing degree increases the packet communication ti...

Multiplexing gain has been studied extensively in the context of statistical characterizations of traffic streams with quality-of-service criteria such as packet loss probability, mean delay, and delay variance. In this paper, we demonstrate that multiplexing gain can also arise in the context of deterministic traffic constraint functions, service curve scheduling, and qualityof-service require...

Holographic data storage is a promising technology that provides very large data storage capacity, and the multiplexing method plays a significant role in increasing this capacity. Various multiplexing methods have been previously researched. In the present study, we propose a shift-peristrophic multiplexing technique that uses spherical reference waves, and experimentally verify that this meth...

Resonant optical cavities have been demonstrated to improve energy efficiencies in Holographic Data Storage Systems (HDSS). The orthogonal reference beams supported as cavity eigenmodes can provide another multiplexing degree of freedom to push storage densities toward the limit of 3D optical data storage. While keeping the increased energy efficiency of a cavity enhanced reference arm, image b...

A new dispersion map is designed for three-level code division multiplexing (3LCDM) of a 40 Gb/s (2 x 20 Gb/s) over 500 km (5 x 100km) standard single mode fiber. The results show that an 87.5 % dispersion compensation ratio was the optimum map for the 3LCDM system. The system performance is improved by 6 dB in optical signal-to-noise ratio, 6 dB in receiver sensitivity and 3 dB in self-phase m...

In this paper, we derive lower bounds on optimal diversity-multiplexing tradeoff in multiple antenna channels when the transmitter has finite bits of channel state information. We show that for each multiplexing gain, the diversity order is higher than the case without feedback. Furthermore, as the number of feedback bits increases, the diversity-multiplexing tradeoff grows unboundedly to appro...

Multiplexing is a common technique for encoding highdimensional image data into a single two-dimensional image. Examples of spatial multiplexing include Bayer patterns to encode color channels, and integral images to encode light fields. In the Fourier domain, optical heterodyning has been used to encode light fields. In this paper, we analyze the relationship between spatial and Fourier multip...

A contemporary perspective on the tradeoff between transmit antenna diversity and spatial multiplexing is provided. It is argued that, in the context of most modern wireless systems and for the operating points of interest, transmission techniques that utilize all available spatial degrees of freedom for multiplexing outperform techniques that explicitly sacrifice spatial multiplexing for diver...

The RTP/UDP/IP protocol suite is in the process of being standardized for multiplexing realtime flows. It aims at reducing header overhead, therefore, it is apt for transporting compressed voice in access links or in the core of mobile communication networks. To provide realtime quality of service, networks require traffic parameters which can be met using a spacer. In this paper, an exact anal...