Interference–Aware Dual–Hop Cooperative Relaying in a Poisson Field of Interferers

Wei Lu 1 Marco Di Renzo 1
1 Division Télécoms et Réseaux - L2S
L2S - Laboratoire des signaux et systèmes : 1289
Abstract : In this paper, we study amplify-and-forward dual-hop cooperative relaying protocols in the presence of Rayleigh fading, additive noise at the relay, as well as additive noise and symmetric alpha-stable interference at the destination. A quasi-static interference scenario is considered, which arises, e.g., when the same interferers are active during broadcast and relaying phases. At the destination, a maximal ratio combining demodulator is developed and studied, by assuming that the aggregate interference can be estimated, i.e., interference-aware design. A closed-form expression of the end-to-end moment generating function is provided and the achievable diversity order is studied. Two main results emerge from the paper: 1) if the ratio of the transmit-powers of cooperative and interfering networks is a constant, the diversity order is equal to 1 and 2) if the transmit-power of the interfering network is a constant, the diversity order is equal to 1 + 1/bI, where bI > 1 is the amplitude path-loss exponent. In the latter case, thus, second-order diversity is achieved asymptotically, as the amplitude path-loss exponent tends to one. Mathematical frameworks and findings are validated with the aid of Monte Carlo simulations.
Type de document :
Communication dans un congrès
IEEE Global Communications Conference GLOBECOM 2014, Dec 2014, Austin, United States. Proceedings of the IEEE Global Communications Conference, 2014, 〈10.1109/glocom.2014.7037457 〉
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https://hal-supelec.archives-ouvertes.fr/hal-01104365
Contributeur : Wei Lu <>
Soumis le : vendredi 16 janvier 2015 - 15:48:15
Dernière modification le : mardi 24 avril 2018 - 14:01:52

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Wei Lu, Marco Di Renzo. Interference–Aware Dual–Hop Cooperative Relaying in a Poisson Field of Interferers. IEEE Global Communications Conference GLOBECOM 2014, Dec 2014, Austin, United States. Proceedings of the IEEE Global Communications Conference, 2014, 〈10.1109/glocom.2014.7037457 〉. 〈hal-01104365〉

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