Cooperative multiple access under energy harvesting constraints
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Dosyalar
Tarih
2015
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Institute of Electrical and Electronics Engineers Inc
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
We consider a cooperative multiple access channel (MAC) with two energy harvesting transmitters. The transmitters perform delay constrained transmission, i.e., every information block is encoded, transmitted and decoded between two consecutive energy harvests. We aim to maximize the achievable departure region over a finite transmission duration. We formulate the departure region maximization as a convex optimization problem. We propose an iterative algorithm which uses a directional waterfilling strategy to calculate the optimal power components. The departure region obtained by cooperation is shown to be significantly larger than that of a MAC without cooperation under the same energy arrival patterns. As a special case, we also analyze an energy harvesting relay channel with full duplex cooperation.
Açıklama
Anahtar Kelimeler
Algorithms, Convex optimization, Iterative methods, Optimization, Transmitters, Arrival patterns, Convex optimization problems, Cooperative multiple access, Information blocks, Iterative algorithm, Optimal power, Relay channels, Transmission durations, Energy harvesting
Kaynak
2015 IEEE Global Communications Conference (GLOBECOM)
WoS Q Değeri
N/A
Scopus Q Değeri
N/A
Cilt
Sayı
Künye
Su, N., Kaya, O., Ulukuş, Ş. & Koca, M. (2014). Cooperative multiple access under energy harvesting constraints. Paper presented at the 2015 IEEE Global Communications Conference (GLOBECOM) 1-6. doi:10.1109/GLOCOM.2014.7417655
