Reliable High-speed Data Transmission Research Articles

A Brief Review of Multipath TCP for Vehicular Networks.

Multipath TCP (MPTCP) is one of the most important extensions to TCP that enables the use of multiple paths in data transmissions for a TCP connection. In MPTCP, the end hosts transmit data across a number of TCP subflows simultaneously on one connection. MPTCP can sufficiently utilize the bandwidth resources to improve the transmission efficiency while providing TCP fairness to other TCP connections. Meanwhile, it also offers resilience due to multipath data transfers. MPTCP attracts tremendous attention from the academic and industry field due to the explosive data growth in recent times and limited network bandwidth for each single available communication interface. The vehicular Internet-of-Things systems, such as cooperative autonomous driving, require reliable high speed data transmission and robustness. MPTCP could be a promising approach to solve these challenges. In this paper, we first conduct a brief survey of existing MPTCP studies and give a brief overview to multipath routing. Then we discuss the significance technical challenges in applying MPTCP for vehicular networks and point out future research directions.

Dual Linearly-Polarized Antenna Array With High Gain and High Isolation for 5G Millimeter-Wave Applications

A dual linearly-polarized (LP) high-order-mode antenna with high gain and high isolation is proposed for 5G millimeter-wave (mm-wave) applications. To obtain high gain and wide bandwidth, a 2 × 2 slot-fed magneto-electric (ME)-dipole antenna elements are excited by a high-order-mode TM430 cavity. Two substrate integrated waveguide (SIW) feeding networks that are vertically arranged in the bottom layers are employed to feed the high-order-mode cavity antenna for a double capacity, high isolation and low transmission loss. Moreover, an 8 × 8 antenna array is fed by a pair of compact modified H-shaped full-corporate SIW networks. Measurement results show that an overlapped frequency bandwidth of 14.6% (36.8-42.6 GHz) with a peak gain of 25.8 dBi and an isolation of greater than 45 dB for the 8 × 8 dual LP antenna array are achieved, which guarantee reliable high-speed data transmission and anti-interference capacity for 5G communications.

Hybrid Frequency Reuse Scheme for Cellular MIMO Systems

As the demand for reliable high speed data transmission increases, the capacity of downlink cellular multiple-input multiple-output (MIMO) systems is of much interest. Unfortunately, the capacity analysis regarding the frequency reuse factor (FRF) is rarely reported. In this paper, theoretical analyses for both ergodic and outage capacities for cellular MIMO systems are presented. The FRF is considered and a hybrid frequency reuse scheme is proposed. It is shown by the numerical results that the proposed scheme can greatly alleviate the coverage problem of single-frequency-reuse cellular systems.

Alpha Wire delivers reliable high-speed data transmission in medical applications

Alpha Wire delivers reliable high-speed data transmission in medical applications

Reliable high-speed data transmission from a mobile vehicle via a leaky feeder

This paper establishes the feasibility of transmitting high integrity data, via a leaky coaxial feeder, at much higher rates than are normally considered possible over a mobile radio channel. Both signal variations and error rates are examined. The use of diversity techniques to improve performance are considered and possible system layouts are presented.

Transmission Of Digital Information over Telephone Circuits

The problems of transmission of digital data over commercial telephone lines are studied with particular attention to transmitting telephone numbers over a wide variety of circuits. The electrical characteristics of these lines and the noise present on them are major factors which influence the design of a reliable high-speed data transmission system. A system which takes account of these factors has been designed and tested. The results of tests indicate that it operates reliably on almost all message circuits at a rate of about 650 bits per second with signals occupying the band from 700 to 1,700 cycles.