Squire Tech News

A pre-emption framework for UMTS compatible satellite system supporting multimedia traffic

2016-02-10T09:52:40+00:00

SUMMARY The pre-emption procedure is an important part of the radio resource management when dealing with the emergency traffic. It allows resources to be allocated to higher priority connections by pre-empting lower priority connections. The provision of the pre-emption mechanism becomes much more important in the case of satellite systems such as the Inmarsat Broadband [...]

A pre-emption framework for UMTS compatible satellite system supporting multimedia traffic2016-02-10T09:52:40+00:00

An improved authentication scheme for mobile satellite communication systems

2016-02-10T09:52:47+00:00

SUMMARY Recently, Lee et al. proposed a simple and efficient authentication scheme for mobile satellite communication systems. However, we find that their scheme is vulnerable to the smart card loss attack, the denial of service attack and the replay attack. To overcome the weaknesses of Lee et al.'s scheme, we proposed an authentication scheme for [...]

An improved authentication scheme for mobile satellite communication systems2016-02-10T09:52:47+00:00

Experimental detection of mobile satellite transmissions with cyclostationary features

2016-02-10T09:52:55+00:00

ABSTRACTOne of the important functions of cognitive radio (CR) technology is spectrum sensing. The implementation of an efficient spectrum sensing function can be quite challenging because of various factors such as multi-path fading, low signal-to-noise ratio of the radio communication services to be detected and the requirement to detect and analyze the signal in a [...]

Experimental detection of mobile satellite transmissions with cyclostationary features2016-02-10T09:52:55+00:00

The combined automatic repeat request and rate control mechanism in S-band mobile interactive multimedia asynchronous return link—design background, parameter dimensioning and first experimental results

2016-02-10T09:53:03+00:00

SUMMARY In the S-band mobile interactive multimedia specification, an asynchronous access using Enhanced Spread Spectrum Aloha random access has been defined for occasional messaging applications. This access scheme is complemented by a combined automatic repeat request and terminal rate control mechanism that is described in this paper. Furthermore, a queuing theory-based model is developed to [...]

The combined automatic repeat request and rate control mechanism in S-band mobile interactive multimedia asynchronous return link—design background, parameter dimensioning and first experimental results2016-02-10T09:53:03+00:00

Enhanced spread Aloha physical layer design and performance

2016-02-10T09:53:13+00:00

SUMMARY This paper describes the key design and performance aspects of the Enhanced Spread Spectrum Aloha (E-SSA) physical layer, which represents an essential component of the S-band Mobile Interactive Multimedia European Telecommunication Institute standard. Thanks to advanced signal processing at the gateway side, the E-SSA random access protocol allows to achieve unprecedented spectral efficiency in [...]

Enhanced spread Aloha physical layer design and performance2016-02-10T09:53:13+00:00

Transmission control protocol performance enhancement for mobile broadband interactive satellite communication system: a cross-layer approach

2016-02-10T09:53:21+00:00

SUMMARYMobile broadband interactive satellite communication system is of great interest in both academic and industrial communities. However, the conventional strict-layered protocol stack architecture and the standard TCP version perform poorly over satellite link. In this paper, we propose a comprehensive cross-layer Transmission Control Protocol (TCP) optimization architecture while considering the main factors that affect the [...]

Transmission control protocol performance enhancement for mobile broadband interactive satellite communication system: a cross-layer approach2016-02-10T09:53:21+00:00

Metro Debuts $1M Mobile Unit For Emergency, Large Event Operations

2016-02-10T09:53:30+00:00

Transportation officials Thursday debuted a new state-of-the-art mobile command post designed to help keep bus and rail operations running smoothly in the event of an emergency. KNX 1070’s Pete Demetriou reports Metro’s Mobile Command Center may look like a giant black mobile home from the outside, but officials say inside it’s nothing less than a [...]

Metro Debuts $1M Mobile Unit For Emergency, Large Event Operations2016-02-10T09:53:30+00:00

Nikola Tesla Quote

2016-02-10T09:53:41+00:00

If you want to find the secrets of the universe, think in terms of energy, frequency and vibration.

Nikola Tesla Quote2016-02-10T09:53:41+00:00

Squire Tech Solutions Replaces pCom® 300 and pCom® 400 Series with New pCom® XL Satellite Trailer

2016-02-10T09:54:10+00:00

Dallas, TX (PRWEB) October 17, 2012 – Squire Tech Solutions, leading tactical satellite service provider and mobile response equipment manufacturer, announced today the replacement of the pCom® 300 and 400 line with the 2013 pCom® XL Satellite Trailer. The discontinuation of the pCom® 300 and 400 series was based on consumer feedback to incorporate enhancements, and [...]

Squire Tech Solutions Replaces pCom® 300 and pCom® 400 Series with New pCom® XL Satellite Trailer2016-02-10T09:54:10+00:00