Modeling Slotted Aloha as a Stochastic Game with Random Discrete Power Selection Algorithms
We consider the uplink case of a cellular system where 𝑚 bufferless mobiles transmit over a common channel to a base station, using the slotted aloha medium access protocol. We study the performance of this system under several power differentiation schemes. Indeed, we consider a random set of selec...
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| Format: | Article |
| Language: | English |
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Wiley
2009-01-01
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| Series: | Journal of Computer Systems, Networks, and Communications |
| Online Access: | http://dx.doi.org/10.1155/2009/572650 |
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| author | Rachid El-Azouzi Essaid Sabir Tania Jiménez El-Houssine Bouyakhf |
| author_facet | Rachid El-Azouzi Essaid Sabir Tania Jiménez El-Houssine Bouyakhf |
| author_sort | Rachid El-Azouzi |
| collection | DOAJ |
| description | We consider the uplink case of a cellular system where 𝑚 bufferless mobiles transmit over a common channel to a base station, using the slotted aloha medium access protocol. We study the performance of this system under several power differentiation schemes. Indeed, we consider a random set of selectable transmission powers and further study the impact of priorities given either to new arrival packets or to the backlogged ones. Later, we address a general capture model where a mobile transmits successfully a packet if its instantaneous SINR (signal to interferences plus noise ratio) is lager than some fixed threshold. Under this capture model, we analyze both the cooperative team in which a common goal is jointly optimized as well as the noncooperative game problem where mobiles reach to optimize their own objectives. Furthermore, we derive the throughput and the expected delay and use them as the objectives to optimize and provide a stability analysis as alternative study. Exhaustive performance evaluations were carried out, we show that schemes with power differentiation improve significantly the individual as well as global performances, and could eliminate in some cases the bi-stable nature of slotted aloha. |
| format | Article |
| id | doaj-art-d6e06a707c71457ebbac38ab888b7b01 |
| institution | Kabale University |
| issn | 1687-7381 1687-739X |
| language | English |
| publishDate | 2009-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Computer Systems, Networks, and Communications |
| spelling | doaj-art-d6e06a707c71457ebbac38ab888b7b012025-02-03T06:11:09ZengWileyJournal of Computer Systems, Networks, and Communications1687-73811687-739X2009-01-01200910.1155/2009/572650572650Modeling Slotted Aloha as a Stochastic Game with Random Discrete Power Selection AlgorithmsRachid El-Azouzi0Essaid Sabir1Tania Jiménez2El-Houssine Bouyakhf3LIA/CERI, University of Avignon, Agroparc, BP 1228, FranceLIA/CERI, University of Avignon, Agroparc, BP 1228, FranceLIA/CERI, University of Avignon, Agroparc, BP 1228, FranceLIMIARF, Faculty of Sciences, University of Mohammed V, B.P. 1014 RP, Rabat, MoroccoWe consider the uplink case of a cellular system where 𝑚 bufferless mobiles transmit over a common channel to a base station, using the slotted aloha medium access protocol. We study the performance of this system under several power differentiation schemes. Indeed, we consider a random set of selectable transmission powers and further study the impact of priorities given either to new arrival packets or to the backlogged ones. Later, we address a general capture model where a mobile transmits successfully a packet if its instantaneous SINR (signal to interferences plus noise ratio) is lager than some fixed threshold. Under this capture model, we analyze both the cooperative team in which a common goal is jointly optimized as well as the noncooperative game problem where mobiles reach to optimize their own objectives. Furthermore, we derive the throughput and the expected delay and use them as the objectives to optimize and provide a stability analysis as alternative study. Exhaustive performance evaluations were carried out, we show that schemes with power differentiation improve significantly the individual as well as global performances, and could eliminate in some cases the bi-stable nature of slotted aloha.http://dx.doi.org/10.1155/2009/572650 |
| spellingShingle | Rachid El-Azouzi Essaid Sabir Tania Jiménez El-Houssine Bouyakhf Modeling Slotted Aloha as a Stochastic Game with Random Discrete Power Selection Algorithms Journal of Computer Systems, Networks, and Communications |
| title | Modeling Slotted Aloha as a Stochastic Game with Random Discrete Power Selection Algorithms |
| title_full | Modeling Slotted Aloha as a Stochastic Game with Random Discrete Power Selection Algorithms |
| title_fullStr | Modeling Slotted Aloha as a Stochastic Game with Random Discrete Power Selection Algorithms |
| title_full_unstemmed | Modeling Slotted Aloha as a Stochastic Game with Random Discrete Power Selection Algorithms |
| title_short | Modeling Slotted Aloha as a Stochastic Game with Random Discrete Power Selection Algorithms |
| title_sort | modeling slotted aloha as a stochastic game with random discrete power selection algorithms |
| url | http://dx.doi.org/10.1155/2009/572650 |
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