Sponsored White Papers, Webcasts, and Downloads
TechRepublic Resources
- GPSFlight Case Study: Missoula Technology & Development Center
- The Missoula Technology & Development Center MTDC designs and tests parachutes, harnesses and related equipment used for these operations, and collects data on performance and reliability before approving any equipment for use in the field. The MTDC wanted to collect real-time GPS position data as well as barometric altitude information...
- Tags: Transmitter, GPS, Handhelds, Consumer Electronics, Personal Technology, Hardware
- Case studies
- Techniques for Bluetooth Performance Improvement
- This paper examines the application of some techniques in Bluetooth communications expected to improve system's performance under certain environmental conditions. The transmitter diversity Alamouti scheme and receiver diversity have been evaluated and compared to the standard single antenna transmitter and receiver system by means of the achievable BER. Some analytical...
- Tags: Technique, Transmitter, Bluetooth, Productivity, Wireless
- White papers
- Low-Complexity Channel Estimation for Transmitter Diversity OFDM Systems
- Orthogonal Frequency Division Multiplexing OFDM has recently been proposed for achieving high-bit rate communication required in wireless systems. Transmitter diversity can be used with OFDM system for performance improvement in a fading environment. For these systems the receiver requires channel state information for decoding. This paper proposes a novel low...
- Tags: Transmitter, OFDM, Wireless
- White papers
- Testing Challenges for 10 Gb/S Ethernet Over Twisted-Pair Cabling: New Installation and Testing Guidelines Help Combat Alien Crosstalk (AXTalk)
- The transmission capabilities of a cabling link cannot be defined in isolation. The transmitter encodes the digital information, generates the electrical signals to be transmitted and sends these signals on the cabling link. The physical link must be able to transmit the signal from the transmitter to the receiver over...
- Tags: Ethernet, Signal, Transmitter
- White papers 2006-02-01
- EnjoyMyMedia Transmitter Premium (exe)
- By transforming a personal computer folder into a personal broadcasting channel, EnjoyMyMedia turns the act of saving a file into a way to stay in touch. EnjoyMyMedia safely broadcasts personal multimedia--photos, videos, audio, doc, any file--over the Net in private RSS channels only to friends & family. A wizard helps...
- Tags: Transmitter, EnjoyMyMedia, Corporate Communications, RSS, Marketing, Internet
- Software downloads 2007-11-05
- EnjoyMyMedia Transmitter (exe)
- By transforming a personal computer folder into a personal broadcasting channel, EnjoyMyMedia turns the act of saving a file into a way to stay in touch. EnjoyMyMedia safely broadcasts personal multimedia--photos, videos, audio, doc, any file--over the Net in private channels only to friends & family. The Transmitter lets you...
- Tags: Transmitter, EnjoyMyMedia, Corporate Communications, Smart Phones, Marketing, Consumer Electronics, Personal Technology
- Software downloads 2007-10-11
- XML Transmitter (zip)
- XML Transmitter is designed to POST or GET XML messages via HTTP to a Web server and displays the given answer from the Web server. The professional version XML Transmitter Pro has got more features. It can act as a server, which picks up XML files from a folder and...
- Tags: HTTP, Transmitter, Server, XML Transmitter, XML, Web Servers, Software/Web Development, Web Development, Internet
- Software downloads 2007-04-25
- USB radio transmitter?
- I am trying to find a way to play music throughout my house and, if it exists, this would seem to be the easiest way of doing so. Does anyone know of something like this?CheersJames
- Tags: jameshyland91@..., transmitter, USB
- Discussion threads 2007-07-16
- Joint Compensation of Transmitter and Receiver Impairments in OFDM Systems
- The implementation of OFDM-based systems suffers from impairments such as in-phase and quadrature-phase IQ imbalances in the front-end analog processing. Such imbalances are caused by the analog processing of the Radio Frequency RF signal and can be present at both the transmitter and receiver. The resulting IQ distortion limits the...
- Tags: Compensation, Transmitter, Imbalance, OFDM, Wireless
- White papers 2007-01-01
- What Wireless Network Adapter Do I Get??
- I am a complete n00b to wireless networking. Which is scary because I now manage one! (Don't tell anyone at the office my secret!) Anyways, I need to buy a new wireless network adapter for my bosses laptop and I am a bit confused. Whats the difference in the letters...
- Tags: Wireless LANs, Wi-Fi, jozhall@..., wireless, MIMO, transmitter, adapter, receiver, IEEE 802.11, network, wireless network, network adapter
- Discussion threads 2007-05-07
- Recursive and Trellis-Based Feedback Reduction for MIMO-OFDM With Rate-Limited Feedback
- This paper investigates an adaptive MIMO-OFDM system with a feedback link that can only convey a finite number of bits. This paper considers three different transmitter configurations; beamforming applied per OFDM subcarrier; precoded spatial multiplexing applied per subcarrier; and precoded orthogonal space time block coding applied per subcarrier. Depending on...
- Tags: Transmitter, Feedback, MIMO-OFDM, OFDM, Wireless
- White papers 2006-03-16
- OFDM Link Performance With Companding for PAPR Reduction in the Presence of Non-Linear Amplification
- Use of companding for Peak-to-Average-Power Ratio PAPR control is explored for a link involving a non-linear transmit power amplifier with Orthogonal Frequency Division Multiplexing OFDM. Specifically, the objective of the study was to determine if companding using u-law compression/expansion at the transmitter/receiver, respectively, provides end-to-end performance gains relative to a...
- Tags: Georgia Institute Of Technology, Performance, Transmitter, Amplifier, OFDM, Performance Management, Wireless, Human Resources, Workforce Management
- White papers 2006-02-02
- A Direct-Conversion Transmitter for WiMAX and WiBro Applications
- The use of high data rate OFDM modulation translates into challenging requirements for the transmitter in terms of spectral quality and EVM. This calls for low distortion, good signal balance and low phase error. This paper will focus on the challenges and advantages associated with implementing a direct conversion transmitter....
- Tags: Transmitter, OFDM, WiMAX, Wireless
- White papers 2006-01-01
- Cooperative STBC-OFDM Transmissions With Imperfect Synchronization in Time and Frequency
- This paper studies the cooperative STBC-OFDM transmissions when the cooperative transmitters are not perfectly synchronized in time and carrier frequency. While OFDM can effectively resolve the limited delay asynchronism among the transmitters, the asynchronism in carrier frequency presents a major hurdle. Based on an approximate channel model, the paper analyzes...
- Tags: Transmitter, Transmission, OFDM, Wireless
- White papers 2005-11-25
- Interpolation Based Transmit Beamforming for MIMO-OFDM With Limited Feedback
- Transmit beamforming and receive combining are simple methods for exploiting spatial diversity in Multiple-Input Multiple-Output Orthogonal Frequency Division Multiplexing (MIMO-OFDM) system. Optimal beamforming requires channel state information in the form of the beamforming vectors for each OFDM subcarrier. This paper proposes to a limited feedback architecture that combines beamforming vector...
- Tags: Vector, Transmitter, IEEE, MIMO-OFDM, OFDM, Wireless
- White papers 2005-11-11
- Multimode Precoding for MIMO Wireless Systems
- Multiple-Input Multiple-Output MIMO wireless systems obtain large diversity and capacity gains by employing multielement antenna arrays at both the transmitter and receiver. The theoretical performance benefits of MIMO systems, however, are irrelevant unless low error rate, spectrally efficient signaling techniques are found. This paper proposes a new method for designing...
- Tags: Transmitter, MIMO, Idea
- White papers 2005-10-01
- Fast-Responsive Link Adaptation for IEEE 802.11 WLANs
- This paper proposes a truly-adaptive fast-responsive link adaptation scheme for IEEE 802.11 WLANs Wireless LANs. The key idea is to direct the transmitter station's rate-increasing attempts in a controlled manner such that the responsiveness of the link adaptation scheme can be guaranteed with minimum number of rate-increasing attempts. Since the...
- Tags: IEEE 802.11, Transmitter, Adaptation, Idea, Wireless LANs, Wi-Fi, Wireless
- White papers 2005-09-15
- OFDM Power Loading Using Limited Feedback
- Orthogonal Frequency Division Multiplexing OFDM is a practical broadband signaling technique for use in multipath fading channels. The implementation of power loading, however, is dependent on the presence of complete forward link channel knowledge at the transmitter. In systems using Frequency Division Duplexing FDD, this assumption is unrealistic. This paper...
- Tags: Transmitter, OFDM, Wireless
- White papers 2005-09-01
- On the Influence of Phase Noise Induced ICI in MIMO OFDM Systems
- The influence of transmitter and receiver Phase Noise PN on the performance of a Multiple-Input Multiple-Output Orthogonal Frequency Division Multiplexing MIMO OFDM based communication system is analyzed. It is shown that in the case of frequency flat Rayleigh fading, the influence of receiver and transmitter PN is equal. In the...
- Tags: Influence, Transmitter, IEEE, MIMO-OFDM, OFDM, Wireless
- White papers 2005-08-01
- A Fuzzy Reinforcement Learning Approach to Power Control in Wireless Transmitters
- The issue of power-controlled shared channel access in wireless networks supporting packetized data traffic is addressed in this paper. This problem is formulated using the dynamic programming framework and presents a new distributed fuzzy reinforcement learning algorithm (ACFRL-2) capable of adequately solving a class of problems to which the power...
- Tags: Algorithm, Transmitter, Reinforcement, Wireless, Engineering
- White papers 2005-08-01
