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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| Vydáno v: | 2009 Global Mobile Congress s. 1 - 6 |
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| Hlavní autoři: | , , , |
| Médium: | Konferenční příspěvek |
| Jazyk: | angličtina |
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01.10.2009
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| ISBN: | 9781424453023, 142445302X |
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| Abstract | 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. |
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| AbstractList | 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. |
| Author | Jie Chen Ke Pan Yong Zuo Xueyong Liu |
| Author_xml | – sequence: 1 surname: Ke Pan fullname: Ke Pan organization: Commun. & Multimedia SoC Lab., Chinese Acad. of Sci., Beijing, China – sequence: 2 surname: Yong Zuo fullname: Yong Zuo organization: Commun. & Multimedia SoC Lab., Chinese Acad. of Sci., Beijing, China – sequence: 3 surname: Xueyong Liu fullname: Xueyong Liu organization: Commun. & Multimedia SoC Lab., Chinese Acad. of Sci., Beijing, China – sequence: 4 surname: Jie Chen fullname: Jie Chen organization: Commun. & Multimedia SoC Lab., Chinese Acad. of Sci., Beijing, China |
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| Snippet | In the wireless communication systems, the bandwidth is usually variable because of the dynamic channel. Although the optimal number of subpackets and AMC... |
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| SubjectTerms | 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 |
| Title | A joint adaptive subpacket size and modulation coding scheme with variable bandwidth |
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