Abstract
In this paper, we present an opportunistic power scheduling scheme, i.e., a joint time-slot and power allocation scheme for downlink communication in wireless systems. Unlike past works, we allow multiple transmissions in a time-slot that could potentially interfere with each other. These multiple transmissions are allowed to achieve high system efficiency. Hence, it is important to not only select the mobiles to be scheduled in a timeslot, but also to allocate an appropriate transmission power level to these scheduled mobiles. We model the time-varying wireless channel as a stochastic process and formulate a stochastic optimization problem that attempts to maximize the expected total system utility with general constraints on performance or fairness. The power scheduling algorithm is obtained by using stochastic duality and implemented via stochastic subgradient techniques.
| Original language | English |
|---|---|
| Article number | 1638671 |
| Pages (from-to) | 1506-1515 |
| Number of pages | 10 |
| Journal | IEEE Transactions on Wireless Communications |
| Volume | 5 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - 2006 Jun 1 |
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All Science Journal Classification (ASJC) codes
- Computer Science Applications
- Electrical and Electronic Engineering
- Applied Mathematics
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Opportunistic power scheduling for dynamic multi-server wireless systems. / Lee, Jang-Won; Mazumdar, Ravi R.; Shroff, Ness B.
In: IEEE Transactions on Wireless Communications, Vol. 5, No. 6, 1638671, 01.06.2006, p. 1506-1515.Research output: Contribution to journal › Article
TY - JOUR
T1 - Opportunistic power scheduling for dynamic multi-server wireless systems
AU - Lee, Jang-Won
AU - Mazumdar, Ravi R.
AU - Shroff, Ness B.
PY - 2006/6/1
Y1 - 2006/6/1
N2 - In this paper, we present an opportunistic power scheduling scheme, i.e., a joint time-slot and power allocation scheme for downlink communication in wireless systems. Unlike past works, we allow multiple transmissions in a time-slot that could potentially interfere with each other. These multiple transmissions are allowed to achieve high system efficiency. Hence, it is important to not only select the mobiles to be scheduled in a timeslot, but also to allocate an appropriate transmission power level to these scheduled mobiles. We model the time-varying wireless channel as a stochastic process and formulate a stochastic optimization problem that attempts to maximize the expected total system utility with general constraints on performance or fairness. The power scheduling algorithm is obtained by using stochastic duality and implemented via stochastic subgradient techniques.
AB - In this paper, we present an opportunistic power scheduling scheme, i.e., a joint time-slot and power allocation scheme for downlink communication in wireless systems. Unlike past works, we allow multiple transmissions in a time-slot that could potentially interfere with each other. These multiple transmissions are allowed to achieve high system efficiency. Hence, it is important to not only select the mobiles to be scheduled in a timeslot, but also to allocate an appropriate transmission power level to these scheduled mobiles. We model the time-varying wireless channel as a stochastic process and formulate a stochastic optimization problem that attempts to maximize the expected total system utility with general constraints on performance or fairness. The power scheduling algorithm is obtained by using stochastic duality and implemented via stochastic subgradient techniques.
UR - http://www.scopus.com/inward/record.url?scp=33745094406&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=33745094406&partnerID=8YFLogxK
U2 - 10.1109/TWC.2006.1638671
DO - 10.1109/TWC.2006.1638671
M3 - Article
VL - 5
SP - 1506
EP - 1515
JO - IEEE Transactions on Wireless Communications
JF - IEEE Transactions on Wireless Communications
SN - 1536-1276
IS - 6
M1 - 1638671
ER -