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Time Division Multiple Access (TDMA)
White Papers Time division multiple access (TDMA) is digital transmission technology that allows a number of users to access a single radio-frequency (RF) channel without interference by allocating unique time slots to each user within each channel.
[August 14, 2003, 0:00]
TDMA Time Slot And Turn Optimization With Evolutionary Search Techniques
White Papers This paper presents arithmetic real-coded variation operators tailored for time slot and turn optimization on TDMA-scheduled resources with evolutionary algorithms. The operators implement a heuristic strategy to converge towards the solution space...
[January 5, 2006, 0:01]
Dirty Paper Coding Vs. TDMA For MIMO Broadcast Channels
White Papers This paper derives an upper bound on the sum-rate gain that dirty-paper coding provides over TDMA for MIMO broadcast channels. Author found that the sum-rate capacity (achievable using dirty-paper coding) of the multiple-antenna broadcast channel...
[July 20, 2004, 3:00]
Time Division Multiple Access (TDMA)
White Papers In this paper, a concise overview of TDMA (time division multiple access) and its application to mobile communications are presented. It shall be motivated that TDMA, being a means of medium access control (MAC), facilitates both a high spectral...
[July 20, 2004, 3:00]
TDMA Migration To CDMA2000
White Papers CDMA is a viable choice for the migration of TDMA networks. As CDMA and TDMA share an IS-41-based core network, TDMA operators can realize significant savings by reusing TDMA core nodes for CDMA. Since the commercial introduction of CDMA technology...
[May 12, 2004, 1:03]
Delay Analysis And Comparison Of OFDM-TDMA And OFDMA Under IEEE 802.16 QoS Framework
White Papers The delay analysis and comparison of OFDM-TDMA and OFDMA using a flow control scheme under the QoS framework of IEEE 802.16 are conducted in the work discussed in this paper. The paper investigates the maximum packet delay performance by deriving...
[April 13, 2007, 1:01]
Per Connection Performance Analysis Of A Frame-Based TDMA/CDMA MAC Protocol Containing Both Reservation And Contention Slots
White Papers A mixture of reservation plus contention data slots is now widely implemented in TDMA/ CDMA systems to make a system flexible enough to suit various kinds of packets but preserve the good nature of frame-based protocols.
[May 17, 2006, 1:00]
Energy Minimization And Delay Analysis In TDMA-Based Sensor Networks
White Papers The paper proposes variable-length TDMA schemes where the slot length is optimally assigned according to the routing requirement while minimizing the energy consumption across the network. This paper considers sensor networks where energy is a...
[January 5, 2006, 0:01]
A Distributed TDMA Slot Assignment Algorithm For Wireless Sensor Networks
White Papers This paper reports a distributed algorithm for TDMA slot assignment that is self-stabilizing to transient faults and dynamic topology change. Wireless sensor networks benefit from communication protocols that reduce power requirements by avoiding...
[January 5, 2006, 0:01]
Report: "A Distributed TDMA Slot Assignment Algorithm For Wireless Sensor Networks"
White Papers The paper provides a solution for the problem of creating a TDMA schedule in a wireless sensor network. The proposed algorithm is tailored to networks with sensor nodes and computes a TDMA schedule in a distributed manner.
[January 5, 2006, 0:01]
Improving TCP Performance In TDMA-Based Satellite Access Networks
White Papers In TDMA-based MAC (media access control) protocols for satellite network access, slotted ALOHA which has been widely deployed in Very Small Aperture Terminal (VSAT) systems. More recently, Generalized Retransmission Announcement Protocol (GRAP) was...
[January 5, 2006, 0:01]
An Optimal TDMA-Based MAC Scheduling For The Minimum Energy Multicast In Wireless Ad Hoc Networks
White Papers This paper only considers "bandwidth" as the QoS in TDMA-based wireless ad hoc networks that use omni-directional antennas and have limited energy resources. Energy conservation is a critical issue in wireless ad hoc networks since batteries are...
[January 5, 2006, 0:01]
Allocation Of QoS Connections In MF-TDMA Satellite Systems: A Two-Phase Approach
White Papers This paper addresses the problem of providing guaranteed quality of service (QoS) connections over a multi-frequency time division multiple access (MF-TDMA) system that employs differential phase-shift keying (DPSK) with various modulation modes.
[January 5, 2006, 0:01]
Power And Rate Control For Spatial TDMA In Wireless Radio Networks
White Papers Spatial TDMA (S-TDMA) is a "conflict-free" multiple access for MPRNets, which ensures that a packet transmission, whenever made, is successful. S-TDMA is a link oriented scheduling. A very attractive alternative for communications in areas in which...
[January 5, 2006, 0:01]
Energy-Delay Tradeoffs For Data Collection In TDMA-Based Sensor Networks
White Papers The paper first analyzes the delay performance of a transmission scheme based on time division multiple access (TDMA). This paper considers a wireless sensor network where the nodes have limited energy.
[January 5, 2006, 0:01]
Basic Capacity Calculation Methods And Benchmarking For MF-TDMA And MF-CDMA Communication Satellites
White Papers This paper introduces basic capacity calculation methods for circuit switched, multiple-beam, Low Earth Orbit (LEO) communication satellites that use MF-TDMA and MF-CDMA schemes. This paper integrates the bandwidth limit and the power limit on...
[January 5, 2006, 0:01]
An OFDM-TDMA/SA MAC Protocol With QoS Constraints For Broadband Wireless LANs
White Papers Based on OFDM, a new multiple access scheme, called OFDM-TDMA with subcarrier allocation (OFDMTDMA/ SA), is introduced in this paper. It provides more flexibility in resource allocation than other multiple access schemes such as OFDM-TDMA, OFDM...
[January 4, 2006, 23:00]
Optimizing Your TDMA Network Today And Tomorrow
White Papers This document provides an overview of how drive-test tools can help optimize your TDMA-based cellular and PCS networks. Drive-test solutions are used for collecting measurements over a TDMA air interface.
[March 2, 2004, 11:20]
Shosteck Group White Paper On TDMA 3G Migration Paths
White Papers This white paper discusses possible challenges that TDMA/IS-136 operators may face in deploying GSM and possible advantages that CDMA one may offer. Based on these possible advantages, we suggest that TDMA operators may find it worthwhile to...
[March 2, 2004, 11:19]
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, 3:00]
