signal modulation
RSS signal modulationMultiple-Hop Routing in Ultrafast All-Optical Packet Switching Network Using Multiple PPM Routing Tables
White Paper This paper presents the modeling and simulation of multiple-hop routing in ultra fast all-optical packet switching based routers employing multiple Pulse Position Modulation (PPM) formatted routing table. [11 Sep 2008]
Multiple-Hop Routing in Ultrafast All-Optical Packet Switching Network Using Multiple PPM Routing Tables
This paper presents the modeling and simulation of multiple-hop routing in ultra fast all-optical packet switching based routers employing multiple Pulse Position Modulation (PPM) formatted routing table. [11 Sep 2008]
A Power Line Communication Network Infrastructure for the Smart Home
White Paper However, recent advances in communication and modulation methodologies as well as in adaptive digital signal processing and error detection and correction have spawned novel Media Access Control (MAC)... [11 Sep 2008]
MIMO OFDM Receivers for Systems With IQ Imbalances
White Paper Orthogonal frequency division multiplexing (OFDM) is a widely recognized modulation scheme for high data rate communications. Such imbalances are caused by the analog processing of the received radio frequency (RF)... [10 Aug 2008]
Multi-Hop Optical-Label Switching Using Optical 3R Regeneration
White Paper The synchronous modulation through a Mach-Zehnder modulator using the recovered clock performs retiming. The 3R regeneration maintains a good signal quality through multiple hops, which is important for... [11 Jul 2008]
A Bandwidth Efficient Modulation Scheme Using Quasi-Orthogonal Sequences
White Paper High bandwidth efficiency and quasi-orthogonality between the modulation symbols allows to increase the normalized data rate with little or no degradation in the required signal-to-noise ratio per bit to... [11 Jul 2008]
Constant Envelope OFDM Phase Modulation: Spectral Containment, Signal Space Properties and Performance
White Paper For small modulation indices, the OFDM-PM signals are shown to be more spectrally contained than conventional OFDM. The signal space is studied by considering the correlation properties of the OFDM-PM... [10 Apr 2008]
Detection of OFDM-CPM Signals Over Multipath Channels
White Paper A class of Orthogonal Frequency Division Multiplexing - Continuous Phase Modulation (OFDM-CPM) signals is introduced in which binary data sequence is mapped to complex symbols using the concept of correlated phase states... [10 Apr 2008]
OFDM for Mobile Data Communications
White Paper OFDM is a modulation and multiple access technique that has been explored for over 20 years. Only recently has it been finding its way into commercial communications systems, as Moore’s Law has driven down the cost of... [10 Apr 2008]
CDMA Channel Parameters Maximizing TCP Throughput
White Paper Specifically, in the case where direct sequence spread spectrum modulation is used over a fixed bandwidth channel, it was found that the optimal processing gain m that maximizes TCP throughput. A single TCP session... [31 Oct 2007]
A Local Metric for Geographic Routing With Power Control in Wireless Networks
White Paper Using realistic models for wireless channel fading as well as radio modulation and encoding, The paper first shows that the optimal power control strategy over a given link should set the transmission power to achieve a... [31 Aug 2007]
Collaborative Signal Reinforcement in Sensor Networks
White Paper The primary emphasis of the paper is placed on a novel signal reinforcement modulation method that enables the collaborative scheme. This paper presents a collaborative signal... [23 Aug 2007]
Software Defined Radio
White Paper SDR technology facilitates implementation of some of the functional modules in a radio system such as modulation/demodulation, signal generation, coding and link-layer protocols in software. A radio... [25 Jun 2007]
Mobile Terminal Positioning Using Data Symbols to Mitigate the Influence of Noise in Multi Carrier Modulation
White Paper In the positioning of multi carrier modulation, the location of the Mobile Terminal (MT) is estimated by using the correlation of the pilot symbol known to MT. This paper proposes a MT positioning method in which not... [18 Apr 2007]
A Multipath Interference Canceller for OFDM Signal Transmission
White Paper Because OFDM offers a very good way to minimize inter-symbol-interference under multi-path conditions, it seems to be the primary choice of modulation method for future packet transmission systems. This advantage though... [14 Apr 2007]
