Adaptive optimization of EDCA parameters for improved QoS in multi-media applications

Alparslan ÇİL; Mehmet AKAR; Emin ANARIM

Makale detayları

Adaptive optimization of EDCA parameters for improved QoS in multi-media applications

Yazarlar:

Alparslan ÇİL | Mehmet AKAR | Emin ANARIM

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Electrical Engineering and Computer Science 2012 Vol.20 Issue Sup.2, pp.1369-1388

Belge Tipi:

Makale

Yayın Tarihi:

11/2011

Belge Dili:

Türkçe

Document ID (Org No.):

2000743702

Sıklık:

İki Aylık

eISSN:

1303-6203

pISSN:

1300-0632

Özet:

 

IEEE 802.11e Enhanced Distributed Channel Access (EDCA) has been  incorporated into the standard as an effective medium access mechanism in order to provide the desired QoS for multimedia applications such as VoIP and IPTV. This paper presents an adaptive optimization algorithm in EDCA which strives to provide improved QoS from both delay and throughput perspectives.  As a first step towards this goal, a Markov model of the EDCA mechanism has been introduced, which is subsequently used to compute the estimates of throughput and delay. Based on the analytical model that is validated via real-time simulations in OPNET, a new algorithm is proposed that maximizes throughput while decreasing delay and minimizing collision probability for a higher access category.

 

IEEE 802.11e Enhanced Distributed Channel Access (EDCA) has been  incorporated into the standard as an effective medium access mechanism in order to provide the desired QoS for multimedia applications such as VoIP and IPTV. This paper presents an adaptive optimization algorithm in EDCA which strives to provide improved QoS from both delay and throughput perspectives.  As a first step towards this goal, a Markov model of the EDCA mechanism has been introduced, which is subsequently used to compute the estimates of throughput and delay. Based on the analytical model that is validated via real-time simulations in OPNET, a new algorithm is proposed that maximizes throughput while decreasing delay and minimizing collision probability for a higher access category.

Makale detayları

Adaptive optimization of EDCA parameters for improved QoS in multi-media applications

Yazarlar: Alparslan ÇİL | Mehmet AKAR | Emin ANARIM

Yayıncı: TUBITAK

Dergi: Turkish Journal of Electrical Engineering and Computer Science 2012 Vol.20 Issue Sup.2, pp.1369-1388

Belge Tipi: Makale

Yayın Tarihi: 11/2011

Belge Dili: Türkçe

Document ID (Org No.): 2000743702

Sıklık: İki Aylık

eISSN: 1303-6203

pISSN: 1300-0632

Sayı

Yazarlar:

Alparslan ÇİL | Mehmet AKAR | Emin ANARIM

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Electrical Engineering and Computer Science 2012 Vol.20 Issue Sup.2, pp.1369-1388

Belge Tipi:

Makale

Yayın Tarihi:

11/2011

Belge Dili:

Türkçe

Document ID (Org No.):

2000743702

Sıklık:

İki Aylık

eISSN:

1303-6203

pISSN:

1300-0632