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Wi-Fi and Zigbee share the same ISM spectrum band, thus causing severe degradation to ZigBee network performance. Since the ZigBee applications in secure, medical, or critical systems cannot afford such degradation, in this paper we develop an interference coordination scheme which uses virtual data packets to remove interference and create an interference-free tunnel for ZigBee nodes in infrastructure...
To support multimedia transmission over an enterprise wireless network, in this paper we propose a B2BSIP(Back-to-Back Session Initiation Protocol) enterprise solution which provides multimedia QoS adaptation at the application layer as well as dynamic rate control at the link layer. A B2BUA (Back-to-Back User Agent) does not have any improvisation for wireless part of an enterprise network, since...
WiFi and Zigbee sensor networks have their own usage and market but they both work in ISM frequency bands, thus causing coexistence issues. The difference of their transmission powers makes the problem even worst, as Zigbee transmission power is overruled by WiFi nodes. In this paper, we propose an interference coordination scheme based on the infrastructure operational mode. Our scheme uses the inherent...
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