Searching for authors named "Thanasis Korakis" – sorted by Relevance.
7 documents found, showing 1 through 7.
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CDR-MAC: A Protocol for Full Exploitation of Directional Antennas in Ad Hoc Wireless Networks
- …Abstract—In this paper, we propose a new Medium Access Control (MAC) protocol for full exploitation of directional antennas in wireless networks. The protocol introduces a circular directional transmission of the Request To Send (RTS) control packet, spreading around a station information about the …
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Dynamic cross-layer association in 802.11-based mesh networks
- …Abstract—In IEEE 802.11-based wireless mesh networks a user is associated with an access point (AP) in order to communicate and be part of the overall network. The association mechanism specified by the IEEE 802.11 standard does not consider the channel conditions and the AP load in the association …
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On avoiding collisions and promoting cooperation: Catching two birds with one stone
- …A cross-layer approach, called CoopMAC, has been proposed recently to integrate cooperation at the physical layer with the medium access control sublayer, thereby achieving substantial throughput and delay performance improvements. CoopMAC capitalizes on the broadcast nature of wireless channels, re…
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A MAC protocol for full exploitation of Directional Antennas in Ad-Hoc Wireless Networks
- …Directional antennas in ad hoc networks offer many benefits compared with classical omnidirectional antennas. The most important include significant increase of spatial reuse, coverage range and subsequently network capacity as a whole. On the other hand, the use of directional antennas requires new…
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Layered Wireless Video Multicast using Omni-directional Relays
- …Abstract — Wireless video multicast enables delivery of popular events to many wireless users in a bandwidth efficient manner. However, providing good and stable video quality to a large number of users with varying channel conditions remains elusive. We propose to integrate layered video coding wit…
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CoopMAC: A Cooperative MAC for Wireless LANs
- …Abstract — Due to the broadcast nature of wireless signals, a wireless transmission intended for a particular destination station can be overheard by other neighboring stations. A focus of recent research activities in cooperative communications is to achieve spatial diversity gains by requiring the…
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Cooperative MAC for Rate Adaptive Randomized Distributed Space-time Coding
- …Abstract—In a distributed wireless network, it is possible to employ several relays and mimic a multiple antenna transmission system. In this paper we propose a MAC layer solution that allows multiple relays to send information to the receiver at unison, using a randomized distributed space time cod…
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Showing 1 through 7.
