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Interference Estimation In Presence Of Noise For Broadband Wireless Packet Networks
White Papers Realizing the expected performance gain of these techniques requires accurate prediction of future interference power. This paper proposes a new method based on Kalman filtering for interference estimation.
[December 6, 2006, 23:00]
Interference Aware Routing In Multi-Radio Wireless Mesh Networks
White Papers This paper addresses the problem of interference aware routing in multi-radio infrastructure mesh networks wherein each mesh node is equipped with multiple radio interfaces and a subset of nodes serve as Internet gateways.
[December 6, 2006, 23:00]
Interference Between Bluetooth Networks - Upper Bound On The Packet Error Rate
White Papers This paper presents a probabilistic treatment of the performance of a Bluetooth piconet under cochannel interference from other Bluetooth piconets. Bluetooth is a digital wireless data transmission standard in the 2.4-GHz ISM band aimed at...
[August 9, 2005, 0:00]
Interference From CB And Amateur Transmitters
White Papers Interference to television and radio reception can arise from the operation of many electrical and electronic devices. Interference can be caused by electric motors, thermostats and light dimmers; high voltage electricity powerlines; and...
[October 26, 2003, 23:00]
Interference Aware Bluetooth Packet Scheduling
White Papers Since both Bluetooth and IEEE 802.11 devices use the same frequency band and may likely come together in a laptop or may be close together at a desktop, interference may lead to significant performance degradation.
[November 10, 2005, 23:00]
Interference Cancellation For Cellular Systems: A Contemporary Overview
White Papers Despite the enormous amount of academic and industrial research in the past 20 years on interference-aware receivers and the large performance improvements promised by these multi-user techniques, today's receivers still generally treat...
[October 11, 2005, 0:00]
On The Impact Of Beamforming On Interference In Wireless Mesh Networks
White Papers For a wireless mesh network with randomly placed devices, the paper analyzes the impact of beamforming on the statistics of the signal attenuation, interference, and SIR between devices. This paper shows that simple random direction beamforming...
[August 25, 2007, 0:00]
Experimental Assessment Of Media Synchronization Quality In IEEE 802.11b Under Bluetooth Interference
White Papers This paper assesses the media synchronization quality of audio-video transmission over the IEEE 802.11b wireless LAN under Bluetooth interference by experiment. In this situation, the temporal constraints of audio and video may be disturbed, since...
[November 22, 2005, 23:00]
A Study Of Frequency Interference And Indoor Location Sensing With 802.11b And Bluetooth Technologies
White Papers Since BT and WLAN don't get along very well, the paper presents experimental results of interference effect of one technology on the other. Several technologies such as infrared sensing, radio frequency, ultrasonic and RFIDs have been proposed for...
[July 9, 2007, 0:00]
The Impact Of Fading On The Performance Of Large CDMA With Parallel Interference Cancellation
White Papers In this paper, the large-system performance of a multistage first-order linear Partial Parallel Interference Cancellation (PPIC) receiver for a synchronous Direct-Sequence Code Division Multiple Access (DS-CDMA) system over a frequency-flat fading...
[February 14, 2006, 23:00]
Linear Parallel Interference Cancellation In Long-Code CDMA Multiuser Detection
White Papers Parallel interference cancellation (PIC) is a promising detection technique for code division multiple access (CDMA) systems. It has previously been shown that the weighted multi-stage PIC can be seen as an implementation of the steepest descent...
[July 25, 2004, 0:00]
Transmission Capacity Of Wireless Ad Hoc Networks With Successive Interference Cancellation
White Papers This paper studies the improvement in transmission capacity obtainable with successive interference cancellation (SIC), an important receiver technique that has been shown to achieve the capacity of several classes of multiuser channels, but has...
[October 11, 2005, 0:00]
Capacity Gains Of Single Antenna Interference Cancellation In GSM
White Papers Single Antenna Interference Cancellation (SAIC) is a very interesting and promising technology currently being standardized in 3GPP as part of GERAN Release 6. This interference reduction technique takes advantage of the latest developments in...
[November 28, 2005, 23:00]
Iterative Power Control For Imperfect Successive Interference Cancellation
White Papers Successive interference cancellation (SIC) is a technique for increasing the capacity of cellular code-division multipleaccess (CDMA) systems. To be successful, SIC systems require a specific distribution of the users' received powers, especially...
[October 11, 2005, 0:00]
Impact Of Interference Model On Capacity In CDMA Cellular Networks
White Papers An overwhelming number of models in the literature use average interference for calculation of capacity of a CDMA network. This paper shows how to calculate the actual per-user interference and analyze the effect of user-distribution on the...
[July 25, 2004, 0:00]
A Simple Iterative Power Control Scheme For Successive Interference Cancellation
White Papers Successive Interference Cancellation (SIC) is a technique, which has the potential to increase the capacity of DS-CDMA systems substantially. One of the major criticisms of the technique is that it requires a specific distribution of unequal...
[October 11, 2005, 0:00]
Inter-Carrier Interference Cancellation For OFDM Systems
White Papers This frequency offset introduces inter-carrier interference (ICI) in the OFDM symbol. Orthogonal Frequency Division Multiplexing (OFDM) is an emerging multi-carrier modulation scheme, which has been adopted for several wireless standards such as...
[July 27, 2007, 0:00]
Optimum Power Control For Successive Interference Cancellation With Imperfect Channel Estimation
White Papers Successive interference cancellation, in conjunction with orthogonal convolutional codes, has been shown to approach the Shannon capacity for an additive white Gaussian noise channel. However, this requires highly accurate estimates for the...
[October 11, 2005, 0:00]
Successive Interference Cancellation In A Low-Earth Orbit Satellite System
White Papers Successive interference cancellation is a promising technique for increasing the capacity of uplink CDMA channels. In this paper, a recently developed power control algorithm with considerable robustness to channel estimation and power control...
[October 11, 2005, 0:00]
Measurement-Based Models Of Delivery And Interference In Static Wireless Networks
White Papers This paper presents practical models for the physical layer behaviors of packet reception and carrier sense with interference in static wireless networks. These models use measurements of a real network rather than abstract RF propagation models as...
[May 23, 2007, 0:00]
