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Cellular Network Testing
White Papers Like many technology based services, testing is a vital part of installing, maintaining and improving cellular networks. While it is possible to establish a cellular network without measurements of quality of service, profitability is maximized...
[December 12, 2003, 23:00]
Adaptive Call Admission Control For Prioritized Adaptive Services In Wireless/Mobile Multimedia Cellular Networks
White Papers New generation cellular wireless networks are designed to support adaptive multimedia services by controlling individual ongoing flows to increase or decrease their bandwidth in response to changes in traffic load.
[August 17, 2007, 0:00]
Migrating M2M Applications To IP-Based 2.5G And 3G Cellular Networks
White Papers This white paper will explore the nature of the Internet and IP-based cellular networks, and relate them to how Internet protocols can be used to the maximum benefit for M2M applications. It will review the features of Connect One's iChip and...
[July 27, 2007, 0:00]
Interworking Of 3G Cellular Networks And Wireless LANs
White Papers The third Generation (3G) cellular networks provide ubiquitous connectivity but low data rates, whereas Wireless Local Area Networks (WLANs) can offer much higher data rates but only cover smaller geographic areas.
[June 21, 2006, 0:00]
WLAN Cellular Interworking
White Papers Read further to understand about the Pandoras box that WLAN has opened for cellular, and of the solutions available to mobile operators to deal with the situation. Why do market-savvy and street-smart firms add WLAN to their offerings?
[June 25, 2007, 0:00]
An Uplink Packet Relay Protocol For CDMA Cellular-Like Systems
White Papers This paper presents a simple design of a packet relay protocol that can be used for the reverse channel data traffic in CDMA TDD cellular systems. It is named as synchronous Location Dependent Packet Relay (synchronous-LDPR) protocol.
[July 25, 2004, 0:00]
Evolving Cellular Handset Architectures But A Continuing, Insatiable Desire For DSP MIPS
White Papers Cellular telephony is one of the largest, fastest growing markets in the high-tech marketplace. In the last two years, the worldwide consumption of cellular handsets has tripled from 48M units in 1996 to 153M units in 1998.
[January 15, 2004, 23:00]
Attacks And Counter Measures In 2.5G And 3G Cellular IP Networks
White Papers It is more likely that the Cellular Service Provider could be attacked from a more trusted source; the affects of such an attack could have a wide-reaching impact. This paper presents @stake? s research on GPRS Tunneling Protocol (GTP) in relation...
[June 17, 2004, 0:00]
Good News For Cellular Users: Peaceful Coexistence Between GSM And UMTS Networks Promises A Wider Choice Of Services
White Papers Cellular operators, therefore, will have to provide both GSM and UMTS. 2G/2.5G and 3G networks will most likely coexist for quite some time. Like with any new technology, it will take a while for 3G networks to prevail.
[July 21, 2003, 0:00]
SingTel Mobile And Virgin In Billion Dollar Cellular Venture
News With an eye for the combined 55 million strong cellular market of Singapore, Hongkong, and South Korea, SingTel Mobile and Virgin Management Ltd (Virgin) have signed a Memorandum of Understanding (MOU) to create a billion dollar venture to offer...
[May 22, 2000, 9:49]
A Novel Receiver And A Related Performance Bound For Combined Equalization And Decoding Of TCM-Data In TDMA-Based Cellular Mobile-Radio Systems
White Papers This paper describes a new fast adaptive coherent receiver for the detection of Trellis-Coded-Modulated (TCM) signals transmitted over Time-Division-Multiple Access (TDMA) based cellular mobile radio links affected by fast-fading multipaths and co...
[July 20, 2004, 0:00]
Iterative Multiuser Detection, Macrodiversity Combining, And Decoding For The TDMA Cellular Uplink
White Papers A soft-input soft-output (SISO) multiuser detector (MUD) suitable for inclusion in iterative processing architectures is presented and applied to the detection of the coded time division multiple access (TDMA) cellular uplink.
[July 20, 2004, 0:00]
Managing IPv4-to-IPv6 Transition Process In Cellular Networks And Introducing New Peer-to-Peer Services
White Papers This paper describes the acute problems with the current Internet Protocol (IPv4) especially from the IP-based cellular network point of view. Hence, this paper analyzes, how the transition process in Third Generation Partnership Project (3GPP...
[October 27, 2004, 0:00]
Design Considerations And Initial Physical Layer Performance Results For A Space Time Coded OFDM 4G Cellular Network
White Papers The exponential growth of cellular radio, WLANs and the Internet sets the context for a discussion on the role and objectives of 4G. In this paper OFDM is proposed as a leading candidate for a 4G cellular communications standard.
[April 11, 2007, 0:00]
Adaptive Scheduling For Heterogeneous Traffic Flows In Cellular Wireless OFDM-FDMA Systems
White Papers Dynamic subcarrier scheduling copes with channel state variation by dynamically assigning different subcarriers to terminals, e.g.in the downlink of a cellular system. This paper studies the performance gain achieved by introducing dynamic...
[April 11, 2007, 0:00]
Convergence Of Cellular With Other Wireless Technologies: Test Challenges ESeminar
White Papers Many of the newest features or services, such as WLAN, Bluetooth, GPS, S-DMB and MediaFlo, require separate wireless connectivity in addition to the cellular connectivity. Integrating these multiple wireless technologies into the small volume of a...
[February 14, 2006, 23:00]
Capacity Estimation Of SIR-Based Power Controlled CDMA Cellular Systems In Presence Of Power Control Error
White Papers Analytical models to estimate the uplink capacity for SIR-based power controlled CDMA cellular systems were recently developed in [1]-[2]. This paper shows how to develop an analytical model based on the method presented in [1] and [2] to estimate...
[July 25, 2004, 0:00]
First Cellular: A Major Player In A Select Territory
White Papers First Cellular of Southern Illinois has a clear focus: To become the region's top wireless provider. First Cellular began by implementing VeriSign's SpeedSUITE, a comprehensive billing system that greatly reduced the administrative burden on First...
[November 5, 2004, 23:00]
Performance Of A Multimode, Multiband Receiver For OFDM And Cellular Systems
White Papers In addition to existing second generation cellular networks, third generation cellular systems and WLAN technologies are currently being deployed, allowing higher data rate communications. The concept of a multimode transceiver, which can...
[November 1, 2004, 23:00]
Joint Allocation Of Subcarriers And Transmit Powers In A Multiuser OFDM Cellular Network
White Papers This paper considers the problem of joint bandwidth (subcarriers) and power allocation for the downlink of a multi-user multi-cell OFDM cellular network. This resource allocation problem is formulated as a power minimization problem, subject to...
[April 11, 2007, 0:00]
