NDLI: Interaction Between Adaptive Modulation and Scheduling for High-Rate Downlink Packet Transmission

Content Provider	IEEE Xplore Digital Library
Author	Dong In Kim
Copyright Year	1967
Abstract	This paper addresses adaptive modulation for downlink best effort packet data (ldquomultiuser diversityrdquo) in a system employing high-order modulation and multicode (MC) direct-sequence code-division multiple-access formats. In particular, it analyzes the interaction between adaptive modulation and scheduling under the MC constraint that the number of MCs is relatively small (e.g., for relay-based downlink data transmission) and that all MCs to a given user have the same modulation. For this, two scheduling schemes are considered - two-best user and selective relative best user - that provide a balance between throughput and fairness, while accounting for MC and power constraints, high-order modulation, and channel coding for a fine rate granularity. To highlight the tradeoff, it compares the throughput and fairness of the conventional pure opportunistic, relative best, and round robin schemes with the two schemes and develops an analytical framework for the purpose.
Sponsorship	IEEE Vehicular Technology Society
Starting Page	1683
Ending Page	1695
Page Count	13
File Size	754545
File Format	PDF
ISSN	00189545
Volume Number	56
Issue Number	4
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-07-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Adaptive scheduling Downlink Fading Modulation coding Multiaccess communication Throughput Data communication Channel coding Power system relaying Round robin two-best (TB) user scheduling high-order modulation multicode (MC) constraint multiuser diversity
Content Type	Text
Resource Type	Article
Subject	Applied Mathematics Automotive Engineering Computer Networks and Communications Electrical and Electronic Engineering Aerospace Engineering

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Efficient and fair scheduling for best-effort downlink packet data

Interaction Between Adaptive Modulation and Scheduling for High-Rate Downlink Packet Transmission

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