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Communication system design becomes more complicated due to excessive increase of number of users. Systems need to address this load, while providing acceptable levels of Quality of Service (QoS). Additionally, user expectations, quantified via Quality of Experience (QoE), need to be addressed. QoE is calculated on the application layer, where end users interact with the system. As well as user expectations,...
The hybrid automatic repeat request (HARQ) protocol with incremental redundancy (IR) or HARQ-IR protocol is an effective means to transmit signals over unreliable channels. It can achieve ergodic capacity with limited feedback of channel state information (CSI) from a receiver. In this paper, using large deviations, we derive the quality of service (QoS) exponent of the HARQ-IR protocol over fading...
Wireless Personal Area Networks (WPANs) are used for a wide variety of applications. Earlier WPANs, like Bluetooth, offer data rates only for low rate communication. Nowadays, consumer electronic devices have high demands on communication systems, e.g. for high definition video transmission. Users expect future WPANs to act like wired systems by means of reliability, that is, packet loss and distortion...
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