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.
In this paper the idea of using cognitive radio (CR) techniques to optimize the access point (AP) configuration for IEEE 802.11 WLAN was exploited. In particular, we address the issue of optimizing AP transmission power and channel allocation within the network. The aim is to optimize the overall network performance by adjusting the transmission power of the APs and minimizing the non-adjacent co-channel...
Wireless ad hoc networks are a type of wireless network that can be easily created without the need of network infrastructure or central administration. Unfortunately, wireless ad hoc networks suffer from some limitations related to the bandwidth leakage. So a proper data flow mechanism should be used to save the bandwidth consumption. So we proposed an XCAST based routing protocol (P-XCAST) to be...
The huge coverage space of IPv6 addresses and providing guaranteed support for the ever increasing customer demand, results in the dealing with bigger packet header-size compared to the payload-size especially in some real time video and audio applications, consequently more bandwidth is wasting. Using the advantages of MPLS with IPv6 is still one of the migration challenges at the backbone. Payload...
Wireless ad hoc networks are well suited for use by emergency response teams, for search and rescue operations that require team-based communications in the absence of working telecommunications infrastructure. Unfortunately, wireless ad hoc networks suffer from limited bandwidth and QoS constraints. A proposed explicit multicast (XCAST) based routing protocol (P-XCAST) is presented in this paper...
In most of the ad-hoc routing protocols, a static link lifetime (LL) is used for a newly discovered neighbors. Though this works well for networks with fixed infrastructures, it is inadequate for ad-hoc networks due to nodes mobility and frequent breaks of links. To overcome this problem, routing protocols with estimated LL using nodes affinity were introduced. However, these protocols also used the...
Day by day Internet communication and services are experiencing an increase in variety and quantity in their capacity and demand. Thus, making traffic management and quality of service approaches for optimization of the Internet become a challenging area of research; meanwhile flow control and congestion control will be considered as significant fundamentals for the traffic control especially on the...
Management of Mobile Ad-hoc NETworks (MANETs) is very difficult, because the movement of nodes is unpredictable, frequently changing the topology of the network. Consequently, Service Discovery (SD) in the network, a perquisite for efficient usage of network resources, is a complex problem. There are many issues in SD for MANETs. This paper aims to classify and compare existing SD protocols for MANETs...
Unidirectional Lightweight Encapsulation (ULE) is a recently published standard to overcome the efficiency problems of Multi-Protocol Encapsulation for satellite data transmission. This paper presents a comparative study of Unidirectional Lightweight Encapsulation performance using ns-2 [1] simulation and a DVB-S testbed. Performance metrics such link utilization, packet loss and latency were taken...
Unidirectional Lightweight Encapsulation (ULE) is made to overcome some efficiency issues that occurred in Multi-Protocol Encapsulation (MPE). ULE reduces data transmission overhead. Sending data through Digital Video Broadcast via Satellite (DVB-S) technology is more cost effective compared to the traditional satellite based Internet Protocol architecture. In this paper, UDL (Unidirectional Link)...
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.