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| Title: | Performance Evaluation of Phase Optimized Spreading Codes in Non Linear DS-CDMA Receiver |
| Authors: | Bhanja, Ipsita
Patra, S K (Guide) |
| Issue Date: | 2006 |
| Publisher: | National Institute of Technology, Rourkela |
| Citation: | Performance Evaluation of Phase Optimized Spreading Codes in Non Linear DS-CDMA Receiver, Fault Tolerant Real Time Dynamic Scheduling Algorithm For Heterogeneous Distributed System, Thesis submitted in partial fulfillment of the requirements for the degree of the Master of Technology by Research in Electronics, to National Institute of Technology, Rourkela |
| Abstract: | Spread spectrum (SS) is a modulation technique in which the signal occupies a
bandwidth much larger than the minimum necessary to send the information. A
synchronized reception with the code at the receiver is used for despreading the
information before data recovery. Bandspread is accomplished by means of a code which
is independent of the data. Bandspreading code is pseudo-random, thus the spread signal
resembles noise.
The coded modulation characteristic of SS system uniquely qualifies it for navigation
applications. Any signal used in ranging is subject to time/distance relations. A SS signal
has advantage that its phase is easily resolvable. Direct-sequence (DS) form of
modulation is mostly preferred over Frequency Hopping system (FH) as FH systems do
not normally possess high resolution properties. Higher the chip rate, the better the
measurement capability. The basic resolution is one code chip.
Initially, some existing code families e.g. Gold, Kasami (large and smal... |
| Description: | Copyright for the thesis belongs to National Institute of Technology Rourkela |
| URI: | http://hdl.handle.net/2080/673 |
| Appears in Collections: | Thesis (MTech by Research)
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| File |
Description |
Size | Format |
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| thesis-final-ipsita.pdf | | 1823Kb | Adobe PDF | View/Open |
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