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QoS Over Demand-Assigned TDMA Satellite Network
White Papers In a Star Shaped Demand Assigned TDMA (DATDMA) Inbound / TDM Outbound Satellite expense of timing delay. This delay have an impact of the QoS on the various applications in which the demand-assigned TDMA-based satellite network is supporting.
[July 25, 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]
Resource Allocation For Multiservice Multiuser OFDM/FH-TDMA System
White Papers An orthogonal frequency division multiplexing (OFDM) system with frequency hopping (FH) and time division multiple access (TDMA) is proposed with the resource allocation algorithm. The proposed OFDM/FH-TDMA system is designed to support integrated...
[October 16, 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]
Neighbor Based TDMA Slot Assignment Algorithm For WSN
White Papers This paper proposes a neighbor based TDMA (NB-TDMA) slot assignment algorithm for wireless sensor networks suitable for target-tracking kind of applications. In NB-TDMA, multiple slots are assigned to nodes depending upon the number of neighbors.
[October 29, 2007, 23:00]
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]
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]
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]
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]
Performance Issues Of Bluetooth Scatternets And Other Synchronous TDMA Ad Hoc Networks
White Papers This paper addresses a practical performance issue arising in wireless ad hoc networks using time division multiple access (TDMA). The problem is investigated for the case of Bluetooth, a new promising TDMA wireless technology that enables the...
[September 15, 2005, 0:00]
Soft Capacity Analysis Of TDMA Systems With Slow-Frequency Hopping And Multiple-Beam Smart Antennas
White Papers When fractional loading is accompanied with slow-frequency hopping (SFH), soft capacity can be realized in time-division multiple access (TDMA) wireless networks. This paper addresses the capacity gain due to multiple-beam (MB) smart antennas in...
[July 29, 2004, 0:00]
Turbo Equalization And Incremental Redundancy For Advanced TDMA Systems
White Papers The aim of this paper is to discuss a new receiver concept that will improve advanced TDMA system radio-link performance. To demonstrate the usefulness of their approach, researchers choose to adopt the system parameters of Enhanced Data rates for...
[July 29, 2004, 0:00]
Ericsson Delivers The World's First Co-Existent TDMA, GSM And GPRS Networks For Rogers AT&T Wireless
White Papers When Rogers AT&T wireless made the strategic decision to launch state-of-the-art GSM and GPRS networks and an IP backbone in addition to their existing TDMA network, it chose Ericsson as its exclusive supplier.
[July 29, 2004, 0:00]
Performance Issues Of Bluetooth Scatternets And Other Asynchronous TDMA Ad Hoc Networks
White Papers A common assumption of TDMA-based wireless ad hoc networks is the existence of network-wide slot synchronization. In asynchronous TDMA systems each link uses a local time slot reference provided by the hardware clock tick of one of the node endpoints.
[July 20, 2004, 0:00]
A 60GHz Indoor Wireless TDMA Network
White Papers This model of a prototype indoor TDMA-system operating at 60GHz. The system is located on floor of a building subdivided into offices. Base stations are distributed throughout the floor area to provide coverage for all offices and hallways.
[July 20, 2004, 0:00]
Configuring A-TDMA Modulation Profiles
White Papers This paper describes the A-TDMA Service feature, which provides support for DOCSIS 2.0 Advanced Time Division Multiple Access (A-TDMA) upstream modulation profiles on the Cisco uBR-MC16U/X, Cisco uBR-MC28U/X, and Cisco uBR-MC5X20S/U Broadband...
[July 20, 2004, 0:00]
Broadband Multibeam FDMA/TDMA Digital Channelizer/Demodulator
White Papers This paper presents an overview of the architecture for a broadband multibeam, multichannel frequency division multiple access/time division multiple access (FDMA/TDMA) digital demodulator that is a key component of the TRW GenStar system.
[July 20, 2004, 0:00]
MF-TDMA Burst Demodulator Design With Pilot-Symbol Assisted Frequency Estimation
White Papers An increasing number of MF-TDMA multimedia access systems based on the DVB-RCS standard is being deployed or planned for the near future. The satellite terminals installed at the user location are in general power limited, and should have a small...
[July 13, 2007, 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]
Contention-TDMA Protocol: Performance Evaluation
White Papers In this paper, a hybrid access protocol known as contention time-division multiple access (C-TDMA) is presented and analyzed in a radio cellular multiuser system scenario. C-TDMA shows some features of contention-based (slotted-Aloha) and...
[July 20, 2004, 0:00]
