Wireless Communications: Principles and Practice
Wireless Communications: Principles and Practice
Effective capacity: a wireless link model for support of quality of service
IEEE Transactions on Wireless Communications
Fading channels: information-theoretic and communications aspects
IEEE Transactions on Information Theory
Multiaccess fading channels. II. Delay-limited capacities
IEEE Transactions on Information Theory
Capacity and optimal resource allocation for fading broadcast channels .II. Outage capacity
IEEE Transactions on Information Theory
Communication over fading channels with delay constraints
IEEE Transactions on Information Theory
Channels with block interference
IEEE Transactions on Information Theory
On the achievable throughput of a multiantenna Gaussian broadcast channel
IEEE Transactions on Information Theory
Outage Capacity of the Fading Relay Channel in the Low-SNR Regime
IEEE Transactions on Information Theory
Energy-Efficient Transmissions With Individual Packet Delay Constraints
IEEE Transactions on Information Theory
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In this paper, we consider information transmission over a block Rayleigh fading channel, where a finite size buffer is employed to match the source traffic with the channel service capability. Given the buffer size, the transmission capability of a block fading Rayleigh channel is characterized from two aspects: (i) the buffer behavior when the input traffic rate is constant; and (ii) the traffic rate that can be supported by the channel for a given overflow probability constraint. For the first problem, the stationary distribution of the queue length in the buffer is derived by discretizing the queue length using a uniform quantization strategy. It is also shown that the overflow probability of the finite size buffer decreases exponentially with buffer size. An explicit upper bound on the overflow probability is also given. For the second one, a new concept of ε-overflow rate is proposed to measure the transmission capability of a block fading channel under overflow probability constraints. It will be shown that the ε-overflow rate is larger than the ε-outage capacity under the same outage constraint and will meet the great gap between outage capacity and ergodic capacity as the overflow probability constraint varies. Copyright © 2012 John Wiley & Sons, Ltd.