title   
  

Resource allocation for statistical QoS guarantees in MIMO cellular networks

Memiş, Mehmet Özerk and Erçetin, Özgür and Gürbüz, Özgür and Azhari, Seyed Vahid (2015) Resource allocation for statistical QoS guarantees in MIMO cellular networks. EURASIP Journal on Wireless Communications and Networking . ISSN 1687-1472 (Print) 1687-1499 (Online)

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Official URL: http://dx.doi.org/10.1186/s13638-015-0446-7

Abstract

This work considers the performance of the downlink channel of MIMO cellular networks serving multiple users with different statistical QoS requirements. The paper proposes resource allocation algorithms that aim to optimize the system performance over the sum of the optimal user utility functions by employing the effective capacity theory. Proportionally fair resource allocation among the users is performed via two different approaches and solutions, namely, the frame allocation algorithm (FAA), which involves dynamic time allocation for transmit beamforming, and the power allocation algorithm (PAA), which provides optimal power control for space division multiple access. In FAA, each user is assigned a distinct slot of optimal length, based on the instantaneous channel conditions of the active users in each frame; while in PAA, resource allocation is performed via power assignment by taking into account the long-term averages of the channel conditions across all users. The efficacy of the proposed algorithms are demonstrated via numerical experiments considering realistic channel models and various QoS settings.

Item Type:Article
Additional Information:Article Number: 217
Uncontrolled Keywords:Effective capacity; MIMO systems; Spatial multiplexing; Multi-user MIMO
Subjects:T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK5101-6720 Telecommunication
ID Code:27967
Deposited By:Özgür Gürbüz
Deposited On:18 Dec 2015 22:15
Last Modified:18 Dec 2015 22:15

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