Evolved Universal Mobile Telecommunications System (UMTS) Terrestrial Radio Access (E-UTRA) is a new technology that targets the long-term evolution (LTE) of third generation. The E-UTRA technology has recently been standardized by the Third-Generation Partnership Project (3GPP) as a set of (series_36) specifications. The standardization process is almost complete; this paper does not focus on comparing specific proposed schemes but instead aims to outline the system performance more in general. E-UTRA operates in the packet-switched domain; hence, all traffic is handled by the packet protocols. The analysis is shown for Voice over Internet Protocol (VoIP) and Best Effort (BE) data, as these are common examples of real-time and non-real-time traffic, respectively. The performance is given in the VoIP study as the number of satisfied voice users per cell and in the BE study as the cumulative probability distribution of user (or cell) throughput, which was scaled to the spectral efficiency values, given both at the mean and at the cell edge. The VoIP capacity extends beyond 350 users in downlink and 230 users in uplink, which is a considerable increase compared with the high-speed packet-access (HSPA) reference. The BE spectral efficiency meets the 3GPP targets and yields impressive gains of order 2.5-3 times the well-performing HSPA reference. This clearly exceeds the mean of 1.5 b/s/Hz/cell in downlink and 0.8 b/s/Hz/cell in uplink for a baseline antenna configuration with penetration loss of 20 dB. In some scenarios, these mean gains exceed four times the reference.

IEEE 17th International Symposium on Personal, Indoor and Mobile Radio Communications, 2006

A Performance Summary of the Evolved 3G (E-UTRA) for Voice Over Internet and Best Effort Traffic

The evolved UMTS terrestrial radio access (E-UTRA) is a new technology being standardized by the 3GPP . E-UTRA targets for a long term evolution of 3G UMTS. This paper addresses the fundamentals of the E-UTRA technology and describes especially its gain mechanisms. As the standardization work is progressing rapidly, this paper does not focus on comparing the specific proposed schemes, but instead aims at outlining the system performance more in general. As E-UTRA operates in the packet-switched domain, all traffic is handled by packet protocols. The cellular analysis is shown with the results for a voice over internet protocol (VoIP) study case and for a best effort (BE) data study case, as these are common examples of a real-time and a non-real-time traffic, respectively. The performance is given in the number of satisfied voice users per cell and in the cumulative probability distributions of user throughput, which is scalable to the spectral efficiency.

Evaluation of the recent advances of the evolved 3G (E-UTRA) for the VoIP and best effort traffic scenarios

This paper presents two new noise estimation methods in the orthogonal frequency division multiplexing system, which are based on the channel estimation. In the traditional noise estimation method, the noise power is achieved with subtracting the pilot signal power from the total received power. While the first new noise estimation method can get the noise power easily by the difference of the adjacent channels. The second new method is the modification of the first method. Compared with the traditional method, the two new methods are effective on the calculation complexity. Simulation results demonstrate that the estimation accuracy of the two new methods are better than the traditional method.

IEEE 17th International Symposium on Personal, Indoor and Mobile Radio Communications, 2006

Citations

A Performance Summary of the Evolved 3G (E-UTRA) for Voice Over Internet and Best Effort Traffic

Evaluation of the recent advances of the evolved 3G (E-UTRA) for the VoIP and best effort traffic scenarios

Two novel noise estimation methods with low complexity for the OFDM system

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