A joint adaptive subpacket size and modulation coding scheme with variable bandwidth

In the wireless communication systems, the bandwidth is usually variable because of the dynamic channel. Although the optimal number of subpackets and AMC scheme has been proposed recently, it is limited to the fixed bandwidth. In this paper, a cross-layer design named AMC-SPS-SVB which combines AMC...

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Veröffentlicht in:2009 Global Mobile Congress S. 1 - 6
Hauptverfasser: Ke Pan, Yong Zuo, Xueyong Liu, Jie Chen
Format: Tagungsbericht
Sprache:Englisch
Veröffentlicht: IEEE 01.10.2009
Schlagworte:
adaptive packet size
AMC
Application specific processors
Automatic repeat request
Bandwidth
Bit error rate
Closed-form solution
Cross layer design
Curve fitting
effective spectrum efficiency
IEEE 802.16e
Modulation coding
SR-ARQ
Throughput
Wireless communication
ISBN:9781424453023, 142445302X
Online-Zugang:Volltext
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Beschreibung
Zusammenfassung:In the wireless communication systems, the bandwidth is usually variable because of the dynamic channel. Although the optimal number of subpackets and AMC scheme has been proposed recently, it is limited to the fixed bandwidth. In this paper, a cross-layer design named AMC-SPS-SVB which combines AMC and ASPS with SR-ARQ is proposed to maximize the throughput of the system in a dynamic channel with the variable bandwidth. Curve fitting is applied here to give out approximate expressions of bit error rate under given modulation and coding schemes. General closed-form expressions of effective spectrum efficiency and optimal subpacket size under given modulation and coding schemes for our algorithm are presented. Furthermore, an efficient method is provided to find the optimal AMC and subpacket size. Numerical results show that the proposed algorithm improves the throughput of the system and works well with the variable bandwidth.
ISBN:9781424453023
142445302X
DOI:10.1109/GMC.2009.5295857