Title :
Effective Capacity and Optimal Power Allocation for Mobile Satellite Systems and Services
Author :
Vassaki, Stavroula ; Panagopoulos, Athanasios D. ; Constantinou, Philip
Author_Institution :
Sch. of Electr. & Comput. Eng., Nat. Tech. Univ. of Athens, Athens, Greece
fDate :
1/1/2012 12:00:00 AM
Abstract :
Satellite communication networks play a significant role to worldwide telecommunication infrastructure providing direct-to-mobile user satellite services. Quality of Service requirements should be taken into account in the satellite power allocation schemes that follow the channel variations. Employing a shadowed Rician model for land mobile satellite communications and an adaptive modulation scheme, closed form expressions are derived for the optimal power allocation and the effective capacity. The effective capacity of the system under specific Quality of Service constraints is maximized. Finally, the impact of the elevation angle on the power allocation and the effective capacity is investigated.
Keywords :
Rician channels; adaptive modulation; channel capacity; mobile satellite communication; quality of service; adaptive modulation scheme; closed form expressions; direct-to-mobile user satellite services; land mobile satellite communication network; mobile satellite systems; quality of service constraints; satellite power allocation schemes; shadowed Rician model; telecommunication infrastructure; Delay; Mobile communication; Quality of service; Resource management; Satellites; Shadow mapping; Signal to noise ratio; Effective capacity; adaptive modulation; mobile satellite network; power allocation; quality of service;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2011.110711.111881
