single carrier DS-CDMA system
Serial Acquisition Performance of Single and Multi carrier DS CDMA over Nakagami $m$ Fading Channels
... of single-carrier and MC DS-CDMA systems has been investigated and compared with various Nakagami- fading channels under the hypothesis of multiple synchronous states ( cells) in the ...
11
A Unified Approach to the Analysis of Multicarrier DS CDMA over Nakagami $M$ Fading Channels
... multicarrier DS-CDMA scheme, investigate the effect of the normalized subcar- rier spacing, λ, on the system’s performance and compare the perfor- mance of MC DS-CDMA having the optimum ...
5
Single and Multi Carrier DS CDMA: Multi USer Detection, Space Time Spreading, Synchronisation, Standards and Networking
... - relator and linear MMSE detectors in order to reduce the complexity. and [125] advocated using a sequential estimator for minimizing the mean square error. The cross-correlations between the spreading codes and ...
278
Slow Frequency Hopping Multicarrier DS CDMA for Transmission over Nakagami Multipath Fading Channels
... (SFH/MC DS-CDMA) is proposed and inves- tigated, which can be rendered compatible with the existing second-generation narrowband CDMA and third-generation wideband CDMA ...the system ...
11
Multicarrier DS CDMA: A Multiple Access Scheme for Ubiquitous Broadband Wireless Communications
... access system with bandwidth on the order of tens or even hun- dreds of ...schemes: single-carrier direct- sequence CDMA (SC DS-CDMA), multicarrier CDMA (MC-CDMA), ...
9
BER performance of MC DS CDMA systems in the presence of timing jitter : a thesis presented in partial fulfillment of the requirements for the degree of Master of Engineering in Information and Telecommunication Engineering at Massey University, Palmerston North, New Zealand
... a single data stream over a number of lower rate orthogonal sub-carriers coupled with the use of advanced modulation techniques on each component, resulting in a signal with high resistance to ...its ...
113
Single and Multi Carrier DS CDMA: Multi USer Detection, Space Time Spreading, Synchronisation, Standards and Networking
... wide-band DS-CDMA system,” in Proceedings of IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC’97, (Marina Congress Centre, Helsinki, Finland), ...
56
Differentially Coherent Code Acquisition in the Multiple Transmit/Receive Antenna Assisted Multi Carrier DS CDMA Downlink
... a single-antenna assisted serial search based code acquisition arrangement were provided in ...a single-antenna and a multiple-antenna aided MC-DS-CDMA system in terms of characterising ...
5
A resource allocation approach to control interference in Multi Carrier DS CDMA systems
... in single-carrier cellular systems that resources are allocated to the users for every transmission time interval (TTI) in a priority basis up to a moment the parameter called Rise Over thermal noise (RoT) ...
8
Non Coherent Code Acquisition in the Multiple Transmit/Multiple Receive Antenna Aided Single and Multi Carrier DS CDMA Downlink
... the single-path and multi-path ...MC-DS-CDMA system, the scheme has an unnecessarily high diversity order, which is determined by the number of subcarriers ...the DS-CDMA ...
6
Interference Free Broadband Single and Multi Carrier DS CDMA
... LAS DS-CDMA exhibited sig- nificantly better performance than the tradition- al random-code-based DS-CDMA benchmark system in a relatively low-chip-rate scenario, pro- vided that all ...
6
ANALYSIS THE PERFORMANCE OF MULTI-CARRIER CDMA SYSTEM WITH FADING AND INTERFERENCE
... MC-CDMA system for i th number of user. The MC-CDMA transmitter spreads the original data stream using a given spreading code in the frequency ...different carrier frequency to the data signal ...
6
A Unified Exact BER Performance Analysis of Asynchronous DS CDMA Systems Using BPSK Modulation over Fading Channels
... Fig. 5. BER versus the number of users K in an asynchronous DS-CDMA system using random spreading sequences and BPSK modulation commu- nicating over Nakgami- m channels. The length of the random ...
6
ANALYSIS THE PERFORMANCE OF MULTI-CARRIER CDMA SYSTEM WITH FADING AND INTERFERENC
... Multi Carrier Code Division Multiple Access (MC-CDMA) is a relatively new concept to improve the performance over multipath ...multi carrier transmission of DS-CDMA type signals and an ...
13
Performance Improvement of Wireless communication System of DS CDMA with Rake Receiver
... 2. WIRELESS CHANNEL MODELING Wireless communication is one of the majoritylively areas of today‟s life. Wirelesschannels have to be simulate accurately and itis very important for the implementing the system. ...
7
Performance Comparison of FH/MC DS CDMA with Single and Multi Carrier DS CDMA
... The multiple-access scheme is constituted by frequency-hopping FH based multicarrier DS-CDMA FWMC DS-CDMA, where the entire bandwidth of future systems can be divided into a number of su[r] ...
6
Throughput Improvement of STS-Based MC DS-CDMA System with Variable Spreading Factor
... the system. Further more, from the BER curves of the STS-based MC DS- CDMA system versus pre-dispreading SNR some critical thresholds are obtained which are used in rate adaptation ...the ...
10
Analytical Bit Error Rate Performance of DS CDMA Ad Hoc Networks using Large Area Synchronous Spreading Sequences
... a single-hop infinite mesh of rectilinearly located ad hoc ...LAS DS-CDMA exhibits a sig- nificantly better performance than the family of traditional spreading sequences used in a quasi- synchronous ...
5
Single User Performance of Uplink DS CDMA using Relay Assisted Diversity
... Figure 8: BER versus perI thebiVV\JIJbiiR SNR Y 61I t performllancet of thle relay-assisted DS-CDMA using hoth rn-sequences and random spreading sequences and MSINR-assist ed MUD, when t[r] ...
5
Sphere Decoding for Space time Multiuser Detection in STBC DS CDMA System
... in CDMA system are always the foci in wireless communication ...of system and improve the transmission rate without increasing transmission power or channel bandwidth ...For CDMA ...
5