Performance Comparison of IEEE802.11ac vs IEEE 802.11n WLAN in IPv6

A Study on the Performance of IPv6-Based Mobility Protocols: Mobile IPv6 vs. Hierarchical Mobile IPv6

The performance of IP mobility protocols is highly dependent on the change of mobile nodes’ (MNs’) mobility and traffic-related characteristics. Therefore, it is essential to investigate the effects of these characteristics and to conduct an in-depth performance study of these protocols. In this paper, we introduce a novel analytical approach using a continuous-time Markov chain model and hiera...

Performance Comparison of Dual Queue and EDCA for VoIP over IEEE 802.11 WLAN

The popular IEEE 802.11 WLAN today does not provide any quality-of-service (QoS) because of its contention-based channel access nature of the medium access control (MAC). Therefore, we proposed a simple software upgradebased solution, called a dual queue scheme, to provide QoS to real-time services such as Voiceover-IP (VoIP) in our previous work. The dual queue scheme operates on top of the le...

Performance QoS-orientierter Datenübertragung unter dem Standard IEEE 802.11e WLAN

Improving WLAN Performance by Modifying an IEEE 802.11 Protocol

One of the limitations of the IEEE 802.11 distributed coordination function (DCF) protocol is its low bandwidth utilization under medium-to-high traffic loads resulting in low throughput and high packet delay. To overcome performance problems, traditional IEEE 802.11 DCF (“DCF”) protocol is modified to the buffer unit multiple access (BUMA) protocol. The BUMA protocol achieves a better system p...

AAA Architecture for WLAN over IPv6

Internet applications over the becoming standard IPv6 network have been increased significantly. Together with the rapid growth of mobile devices, a secure wireless IPv6 environment is needed. Current security methods, including EAP, 802.1x, Radius, etc., are still inadequate. In this paper, we study the security issues of IPv6, and its threats in the wireless environment, and propose an AAA (A...