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—Energy conservation is essential to wireless networks, particularly for third-generation (3G) and fourth-generation (4G) wireless systems, because high-speed data transmissions would rapidly exhaust the energy of a mobile station. This paper presents the details of energy-saving mechanisms for packet data services in two major standards, namely, the(More)
—To support fast and efficient handovers in mobile WiMAX, we propose Fast Intra-Network and Cross-layer Handover (FINCH) for intradomain (intra-CSN) mobility management. FINCH is a complementary protocol to Mobile IP (MIP), which deals with interdomain (inter-CSN) mobility management in mobile WiMAX. FINCH can reduce not only the handover latency but also(More)
SUMMARY IEEE 802.11n could improve the network efficiency of WLAN by aggregating multiple frames into a single transmission. The frame aggregation technique especially benefits multi-hop transmissions that introduce enormous 802.11 medium access control (MAC) layer control overhead. This paper proposes a novel algorithm, namely dynamic aggregation selection(More)
Keywords: Broadcast algorithm Multi-hop wireless networks Mesh networks 802.11s WMN a b s t r a c t Broadcasting by flooding causes the broadcast storm problem in multi-hop wireless networks. This problem becomes more likely in a wireless mesh network (WMN) because WMNs can bridge wired LANs, increasing broadcast traffic and collision probability. Since the(More)
Article history: Available online xxxx Keywords: IEEE 802.11s Mesh networks Network deployment Network measurement RTS/CTS a b s t r a c t Emerging wireless mesh networks (WMNs) are known for their fast and low cost deployment. Conventional mesh deployment focuses on the outdoor environment, which regards the WMNs as backbone networks. This study deploys(More)
— There are many incompatible wireless systems. How to integrate them has become an important issue. The integration should be done in both Radio Access Networks (RANs) and Core Networks. As that in reconfigurable radio, in this paper we propose a reconfigurable architecture in which different protocols can be used in core networks dynamically. More(More)
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