The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Mobility handling and performance is of major importance for the 3GPP long term evolution (LTE) system. Therefore it is important for mobile devices to use reliable and robust algorithms for the cell search procedure, i.e. the procedure to detect neighbouring cells that can be used as potential handover candidates. We present a novel, low complexity, robust cell search scheme for LTE. The scheme uses...
The Rake and the generalized Rake (G-Rake) receivers are the most commonly used receiver structures in cellular DS-CDMA systems. In this paper we analyze how imperfect channel and noise correlation estimates affect the G-Rake and Rake receiver performances in terms of SIR degradation compared to SIR achieved assuming ideal channel and noise correlation information. The expressions derived in the paper...
In E-UTRAN multiple co-located carriers will typically be deployed requiring efficient inter-frequency (IF) handover procedures and algorithms for retaining service quality, better coverage and load balancing between the carriers. Five IF handover criteria using RSRP, RSRQ or combination thereof are investigated in synchronous and asynchronous E-UTRAN deployment scenarios. The results depict that...
Within 3GPP, the work of defining the long-term evolution (LTE) of 3G is ongoing. The fundamental targets of this evolution are to further improve the coverage and capacity, as well as increasing the data rates and reducing the latency. Another important aspect of 3G LTE is the possibility to use 3G LTE in existing GSM and WCDMA frequency bands, hence the mobile terminal selectivity filter has to...
In this paper an approximate expression for the first inverse moment of (1 - λ) Σ tk=1 λ t-kkTk + λ t (1 - λ)P' -10 , where k is a Gaussian stationary vector process is derived. This generalized quadratic form is the estimate of the information matrix when using the Recursive Least Squares (RLS) algorithm with...
The recursive least-squares (RLS) identification algorithm with a forgetting factor is often used to estimate time-varying parameters in stochastic systems. However, it is hard to say anything about the distribution of the parameter estimates, since they are nonlinear functions of the observations. In this paper we present a way to compute the exact distribution and moments of the weighted least-squares...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.