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المؤلفZhang, Lei
المؤلفYang, Hong-Chuan
المؤلفHasna, Mazen O.
تاريخ الإتاحة2016-04-18T08:10:05Z
تاريخ النشر2014-02
اسم المنشورIEEE Transactions on Communications
المصدرScopus
الاقتباسL. Zhang, H. C. Yang and M. O. Hasna, "Generalized Area Spectral Efficiency: An Effective Performance Metric for Green Wireless Communications," in IEEE Transactions on Communications, vol. 62, no. 2, pp. 747-757, February 2014.
الرقم المعياري الدولي للكتاب0090-6778
معرّف المصادر الموحدhttp://dx.doi.org/10.1109/TCOMM.2013.122913.130138
معرّف المصادر الموحدhttp://hdl.handle.net/10576/4400
الملخصArea spectral efficiency (ASE) was introduced as a metric to quantify the spectral utilization efficiency of cellular systems. Unlike other performance metrics, ASE takes into account the spatial property of cellular systems. In this paper, we generalize the concept of ASE to study arbitrary wireless transmissions. Specifically, we introduce the notion of affected area to characterize the spatial property of arbitrary wireless transmissions. Based on the definition of affected area, we define the performance metric, generalized area spectral efficiency (GASE), to quantify the spatial spectral utilization efficiency as well as the greenness of wireless transmissions. After illustrating its evaluation for point-to-point transmission, we analyze the GASE performance of several different transmission scenarios, including dual-hop relay transmission, three-node cooperative relay transmission and underlay cognitive radio transmission. We derive closed-form expressions for the GASE metric of each transmission scenario under Rayleigh fading environment whenever possible. Through mathematical analysis and numerical examples, we show that the GASE metric provides a new perspective on the design and optimization of wireless transmissions, especially on the transmitting power selection. We also show that introducing relay nodes can greatly improve the spatial utilization efficiency of wireless systems. We illustrate that the GASE metric can help optimize the deployment of underlay cognitive radio systems.
راعي المشروعthe University of Victoria, a Discovery Grant from NSERC, and a grant from Qatar Telecom (Qtel).
اللغةen
الناشرIEEE
الموضوعArea spectral efficiency
performance analysis
relay communications and cognitive radio
العنوانGeneralized area spectral efficiency: An effective performance metric for green wireless communications
النوعArticle
الصفحات747-757
رقم العدد2
رقم المجلد62
dc.accessType Abstract Only


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