A protocol for wireless direct user-to-user DSSS TDMA digital communication at a data rate of the order of one to several megabits per second in the 902-928 MHz, 2400-2483.5 MHz or 5725-5850 MHz band includes a sequence of transactions, each transaction consisting of a predetermined sequence...
Performance analysis of fast and slow moving vehicles using Cdma techniques for underwater wireless communication network This engineering handbook introduces the two most common modulation technologies used in standardized consumer communication networks--direct sequence spread spectrum (DSSS) and orthogonal fr...
Multicarrier spread spectrum communication scheme for cruising sensor network in confined underwater space For example, sate communications designers upgrading to higher data-rate systems require additional framing, synchronization, equalization, retraining, filtering, sampling, and direct-sequence spread spectru...
1.In this paper the theory of the Direct Sequence Spread Spectrum (DSSS) was discussed,and a practical scheme of the power line DSSS carrier communication system was proposed.论述了直接序列扩频技术原理 ,并设计了实际电力线直扩载波系统方案。 2.A novel nonlinear adaptive prediction approach based on...
DSSS transmits binary values as a set called a chip. The chip for digital 1 might be 11100010010 with the digital 0 being the inverse of that. You can see this in the slide at the top of this article. Normal DSSS decoding compares the signal to expected values, using a correlation algo...
第5期频谱输人@@[ 1 ] GONG M LIN T. Research of narrow-band interference suppression technologies in DSSS communication systems [ J]. 5th International Conference on Wireless Communi cations 2009 1 - 5.@@[2] PEREZ-SOLANO J J J FELICI-CASTELL S PO DRIGUEZ-HERNANDEZ M A. Narrowband in...
(L ab.on Ci rcuits and S ystem ,Dept.of Elect rical Engineering ,Tsinghua Univ.,B ei j ing 100084,China ) Abstract :It is a necessary process to estimate t he spread spectrum sequence for direct sequence spread spectrum (DSSS )signal for blind de 2spreading in non 2cooperative ...
Apparatus for indicating the end of an acquisition procedure between a transmitter and receiver in a direct sequence spread spectrum communications system. A transmitter generates a first acquisition code having a first acquisition code period and comprised of digital bits at a first bit rate. A circ...
Abrahams The Radio Card product provides all the hardware required to implement wireless communication using Direct Sequence Spread Spectrum (DSSS) technology. Only an external Media Access Controller is required. DSSS technology provides interference rejection in the presence of narrow band noise. Since ...
Embodiments of the invention provide a method to detect DSSS preambles in smart utility networks. A DSSS signal is received by a receiver and a digital sequence of samples is formed