Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 5 of 5 for “"Medium access protocol"”.
-
Distance-1 constrained channel assignment in single radio wireless mesh networks
… thesis addresses channel assignment and random medium access design for single-radio multi-channel mesh networks. Two prior approaches include: (i) designing MAC protocols that dynamically select channels based on local information and (ii) partitioning the mesh into subnetworks with different …
-
Security threats to the MAC-layer in wireless networks
Medium access control (MAC) protocol security is important in wireless networks due to the lack of physical access control that normally exists in wired networks in the form of connecting a cable. Most efforts in standards organizations and academic research focus on the requirements of …
-
Opportunistic Random Media Access in WLANs
<p>This thesis proposes a new medium access protocol for IEEE 802.11 wireless local area networks, which is called opp01tunistic medium access. The protocol changes the media access opportunities of nodes by adjusting the contention window dynamically according to the different bit rates. Thereby, …
-
Medium Access Control and Adaptive Transmission Techniques in Wireless Networks
… techniques. Enabling this adaptation requires protocols for information exchange as well as mathematical tools to optimize the controllable parameters. In this dissertation, we provide insights into such protocols and mathematical tools that target efficient utilization of the wireless …
-
Efficiency improvements to the Groupe Special Mobile (GSM) digital mobile radio system
… integration. GSM has adopted a contention-based protocol for multipoint-to-point transmission. In particular, the slotted-ALOHA medium access protocol is used to coordinate the transmission of the channel request messages between the scattered mobile stations. Collision still happens when more …