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A Relaying Algorithm For Multihop TDMA TDD Networks Using Diversity
White Papers Peer-to-peer multihop relaying in TDMA networks can provide significant gains in network throughput, particularly when relaying is combined with relaying diversity schemes such as multihop selection combining or multihop maximal ratio combining.
[July 20, 2004, 0:00]
A GRASP For Broadcast Scheduling In Ad-Hoc TDMA Networks
White Papers The BSP is an NP-Complete problem in which a finite set of stations are to be scheduled in a time division multiple access (TDMA) frame. In a TDMA frame, time is divided into equal length slots in which transmissions occur.
[July 20, 2004, 0:00]
Maximal Throughput Of Spatial TDMA In Ad Hoc Networks
White Papers This paper studies the problem of resource optimization in ad hoc networks, where spatial TDMA (STDMA) is used as the access scheme. In ad hoc networks, temporary communication links are set up by a number of units, without the need of any fixed...
[July 20, 2004, 0:00]
Resource Optimization Of Spatial TDMA In Ad Hoc Radio Networks: A Column Generation Approach
White Papers This paper studies the problem of resource allocation with spatial TDMA (STDMA) as the access control scheme. Wireless communications using ad hoc networks are receiving an increasing interest. The most attractive feature of ad hoc networks is the...
[July 20, 2004, 0:00]
A Column Generation Method For Spatia TDMA Scheduling In Ad Hoc Networks
White Papers Spatial TDMA (STDMA) is a scheme for access control in ad hoc networks. STDMA improves TDMA by allowing simultaneous transmission of multiple units. In military command and control systems, ad hoc networks are also referred to as multi-hop radio...
[July 20, 2004, 0:00]
On-Demand TDMA Scheduling For Energy Conservation In Sensor Networks
White Papers This paper presents two variants of an on-demand TDMA (Time Division Multiple Access) MAC protocol. These protocols are designed specifically for sensor networks. Thus, they attempt to reduce energy consumption while still providing efficient...
[July 20, 2004, 0:00]
Throughput Analysis Of A Probabilistic Topology-Unaware TDMA MAC Policy For Ad-Hoc Networks
White Papers The existing topology-unaware TDMA-based schemes are capable of providing a minimum guaranteed throughput by considering a deterministic policy for the utilization of the assigned scheduling time slots.
[July 29, 2004, 0:00]
RF Implementation Of High Capacity TDMA 3G Data And Voice Networks
White Papers Third generation (3G) wireless networks will need to deliver high speed, high capacity wireless data applications while simultaneously coping with an exponential growth in voice traffic. Meanwhile, the wireless communications industry is already...
[July 20, 2004, 0:00]
Analysis Of A Probabilistic Topology-Unaware TDMA MAC Policy For Ad-Hoc Networks
White Papers The design of an efficient Medium Access Control (MAC) for ad-hoc networks is challenging. Topology-unaware TDMAbased schemes, suitable for ad-hoc networks, that guarantee a minimum throughput, have already been proposed.
[July 20, 2004, 0:00]
A Unified Approach To Dynamic TDMA Slot Assignment And To Distributed Routing For Multi-Hop Packet Radio Networks
White Papers In this paper a unified approach to Time Division Multiple Access (TDMA) slot assignment and to distributed routing in multi-hop packet radio networks is proposed. Dynamic reservation protocols for TDMA based wireless networks provide network...
[July 20, 2004, 0:00]
Distributed Scalable TDMA Scheduling Algorithm
White Papers Lack of scalability and channel efficiency is often touted as the main drawback of TDMA for wireless sensor networks. In the paper, a new distributed TDMA scheduling algorithm, called DRAND, is employed that gives a channel schedule as efficient as...
[July 20, 2004, 0:00]
GPRS - How Does It Work And How Good Is It?
White Papers GPRS (general packet radio service) is a new non-voice service that is being added to existing IS-136 TDMA (time division multiple access) networks in the United States and GSM (Global System for Mobile Communications) networks in the United...
[July 16, 2007, 0:00]
CES: New Phones Unveiled
News The phone, the Nokia 6340, will work on cell phone networks based on technologies GSM (Global System For Mobile Communications) and TDMA (Time Division Multiple Access), according to a Nokia representative.
[January 8, 2002, 10:33]
A Request-TDMA Multiple-Access Scheme For Wireless Multimedia Networks
White Papers This paper describes a cellular multiple-access scheme based on TDMA for multimedia communication networks. In current wireless communication networks, bandwidth is a scarce resource and has to be exploited as efficiently as possible.
[July 20, 2004, 0:00]
QoS Over Demand-Assigned TDMA Satellite Network
White Papers This paper examines several issues of using demand-assigned TDMA technology to interconnect geographically dispersed networks. In a Star Shaped Demand Assigned TDMA (DATDMA) Inbound / TDM Outbound Satellite expense of timing delay.
[July 25, 2004, 0:00]
Adaptive Area Location Planning And Over-All Network Planning For Multi-Constrained UMTS Networks
White Papers The UMTS cellular network significantly differentiates itself from the traditional narrowband TDMA/FDMA system, in which great capacity gain can be explored by taking advantage of its unique characteristics.
[July 19, 2005, 0:00]
Amendments To 802.11a PHY For WirelessHUMAN Standard
White Papers It discusses functions that are needed in addition to what is available in the IEEE802.11a PHY to support a TDD/TDMA mode of operation in Metropolitan Area Networks. This paper gives an outline of the proposed changes to the Physical Layer (PHY...
[March 30, 2005, 0:00]
Ericsson Case Study: Rogers AT&T Wireless - Canada
White Papers Rogers AT&T Wireless had already made a significant investment in systems and business processes for its existing TDMA network and wanted to avoid unnecessary duplication and complexity of running two separate networks.
[October 27, 2006, 0:00]
Cross-Layer Optimization For Scheduling In OFDM-TDMA Transmission
White Papers This paper gives an overview of some initial activities in the air interface design considered in the orthogonal frequency-division multiplexing (OFDM) time-division multiple access (TDMA) cluster. In the integrated project My personal Adaptive...
[March 30, 2005, 0:00]
OpenMaster For Telecom Case Studies: Lockheed Martin Global Telecommunications
White Papers The challenge faced was to improve the management of its time division multiple access (TDMA) networks, which are used by major telecommunications carriers to transmit their public telephone services worldwide.
[July 14, 2005, 0:00]
