Cooperative diversity with mobile nodes: Capacity outage rate and duration

Zlatanov N, Hadzi-Velkov Z, Karagiannidis GK, Schober R (2011)

Publication Type: Journal article

Publication year: 2011

Journal

IEEE Transactions on Information Theory Institute of Electrical and Electronics Engineers (IEEE)

Book Volume: 57

Pages Range: 6555-6568

Article Number: 6034758

Journal Issue: 10

DOI: 10.1109/TIT.2011.2165794

Abstract

The outage probability is an important performance measure for cooperative diversity schemes. However, in mobile environments, the outage probability does not completely describe the behavior of cooperative diversity schemes since the mobility of the involved nodes introduces variations in the channel gains. As a result, the capacity outage events are correlated in time and second-order statistical parameters of the achievable information-theoretic capacity such as the average capacity outage rate (AOR) and the average capacity outage duration (AOD) are required to obtain a more complete description of the properties of cooperative diversity protocols. In this paper, assuming slow Rayleigh fading, we derive exact expressions for the AOR and the AOD of three well-known cooperative diversity protocols: variable-gain amplify-and-forward, decode-and-forward, and selection decode-and-forward relaying. Furthermore, we develop asymptotically tight high signal-to-noise ratio (SNR) approximations, which offer important insights into the influence of various system and channel parameters on the AOR and the AOD. In particular, we show that on a double-logarithmic scale, similar to the outage probability, the AOR asymptotically decays with the SNR with a slope that depends on the diversity gain of the cooperative protocol, whereas the AOD asymptotically decays with a slope of -1/2 independent of the diversity gain. © 2011 IEEE.

Authors with CRIS profile

Robert Schober

Involved external institutions

Saints Cyril and Methodius University of Skopje / Универзитет „Св. Кирил и Методиј“ во Скопје MK Republic of North Macedonia (MK) University of British Columbia CA Canada (CA) Aristotle University of Thessaloniki GR Greece (GR)

How to cite

APA:

Zlatanov, N., Hadzi-Velkov, Z., Karagiannidis, G.K., & Schober, R. (2011). Cooperative diversity with mobile nodes: Capacity outage rate and duration. IEEE Transactions on Information Theory, 57(10), 6555-6568. https://doi.org/10.1109/TIT.2011.2165794

MLA:

Zlatanov, Nikola, et al. "Cooperative diversity with mobile nodes: Capacity outage rate and duration." IEEE Transactions on Information Theory 57.10 (2011): 6555-6568.

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