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.
This paper studies the physical-layer benefits of low latency operation in long-term evolution (LTE) networks. Latency reduction can be achieved by reducing the transmission time interval (TTI) from 1ms to the duration of only a few orthogonal frequency-division multiplexing symbols. The TTI shortening potentially enables faster link adaptation, thereby enhancing system performance. However, enabling...
Power ramping is one of the mechanisms proposed to help alleviate congestion during random access in LTE cells. We evaluate its performance taking into account preamble SINR considerations as well as Physical Downlink Control Channel (PDCCH) deficiency. Our results show that power ramping can speed up access at small to moderate loads, but that it is actually detrimental at moderate to high loads,...
In this paper, we propose a green solution for cellular users located in hyper dense co-channel deployments of LTE small cell networks (SCNs), randomly distributed within LTE macro cell networks (MCNs). Our solution is based on a distributed sharing time access algorithm executed by small base stations (SBSs), and multi-homing capabilities of macro cellular users to improve the energy efficiency of...
The Internet of Things (IoT) has emerged as one of the focal points in the evolution of cellular networks, and has motivated the introduction of several features that facilitate Machine-Type Communications (MTC) in LTE networks. These features serve the MTC goals of reduced User Equipment (UE) modem cost and complexity, Coverage Enhancement (CE) to support UEs in remote radio locations, and an improved...
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.