Rake receiver sensitivity to spreading sequence

The aim of this study is to evaluate the performance of the UTRA-TDD at a system level by taking into account a tight model of the quality of service (QoS) at a link level. CDMA system capacity evaluation is usually made by assuming the spreading sequences to be random like and the interference distribution to be gaussian. Therefore, the QoS is related to an equivalent SIR incorporating a mean orthogonality factor between users. In a downlink UTRA-TDD context, these assumptions are not appropriate. Realistic interference distribution is investigated. Two types of receivers are considered in this study: a RAKE receiver and a multi-user detector. A tight analysis of the impact of the interference on the link quality is carried out by using exact analytical evaluation, approximate calculus and link level simulations. Simplified QoS metrics are proposed and discussed. These results modeling the link level behavior can be used as inputs for a system level in order to evaluate power control algorithm or resource allocation strategy.

show abstract

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

customersupport@researchsolutions.com

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

Rake receiver sensitivity to spreading sequence

Cited by 4 publications

References 4 publications

Low Complexity Rake Receiver and Channel Estimator Implementation for DSSS-CDMA Systems

Low Complexity Rake Receiver and Channel Estimator Implementation for DSSS-CDMA Systems

Code allocation schemes for the downlink of a TD-CDMA system

Multiple access interference model in a TD-CDMA system for capacity evaluation and throughput optimization

Contact Info

Product

Resources

About