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Revisiting LTE LAA: Channel Access, QoS, and Coexistence with WiFi

Network operators are looking toward LTE License Assisted Access (LAA) as a means of extending capacity by offloading traffic to unlicensed bands. However, operation in these bands requires abiding by certain coexistence rules in terms of channel …

Impact of Lossy Forwarding on MAC and Routing Design in Wireless Ad Hoc Networks

Multi-hop ad hoc networks may employ cooperative communication, in which opportunistic relays use the spatial diversity of radio channels to increase communication reliability. An emerging variant of traditional relaying and forwarding schemes is the …

Traffic Remapping Attacks in Ad Hoc Networks

Ad hoc networks rely on the mutual cooperation of stations. As such, they are susceptible to selfish attacks that abuse network mechanisms. Class-based QoS provisioning mechanisms, such as the EDCA function of IEEE 802.11, are particularly prone to …

CADWAN - A Control Architecture for Dense WiFi Access Networks

The growing demands of ubiquitous computing are leading towards the densification of wireless access networks. The challenges of high density deployments can be addressed by network-wide centralized control. To this end we propose CADWAN-a Control …

Coexistence Issues in Future WiFi Networks

Current advancements within the WiFi domain, such as network densification, traffic offloading, and IoT support, pave the way for increased user and operator satisfaction with future (5G and beyond) network deployments. However, without seamless …

SDN@home: A Method for Controlling Future Wireless Home Networks

Recent advances in wireless networking technologies are leading toward the proliferation of novel home network applications. However, the landscape of emerging scenarios is fragmented due to their varying technological requirements and the …

Selfish insider attacks in IEEE 802.11s wireless mesh networks

The IEEE 802.11s amendment for wireless mesh networks does not provide incentives for stations to cooperate and is particularly vulnerable to selfish insider attacks in which a legitimate network participant hopes to increase its QoS at the expense …

What's new for QoS in IEEE 802.11?

Two amendments to IEEE 802.11 have recently been published: 802.11aa and 802.11ae. Both enhance Quality of Service (QoS) provisioning in Wi-Fi networks by providing support for multicast transmission, enhanced audio video streaming, coping with …

Standardizing a reference model and autonomic network architectures for the self-managing future internet

Research efforts at network design in the area of Autonomic Networking and Self-Managing Networks have reached a maturity level that forms a strong foundation toward standardization of architectural principles of the Self-Managing Future Internet. …