#### DMCA

## QoS Scheduling in Heterogeneous Traffic Multiuser Multiantenna WLAN Systems

### Citations

349 | Dynamic power allocation and routing for time varying wireless networks
- Neely, Modiano, et al.
- 2005
(Show Context)
Citation Context ...s) log2(1− nt/N) (7) showing the effects of the number of active users N and the number of serving beams nt. In point to point scenarios, the queueing delay is the dominant factor in the system delay =-=[5]-=- while in multiuser systems an additional delay factor is introduced, because the system resources are not all the time available to the same user. We name this additional delay factor as the scheduli... |

343 | On the capacity of MIMO broadcast channels with partial side information
- Sharif, Hassibi
- 2005
(Show Context)
Citation Context ...1n and IEEE 802.16e, while it is expected to be part of LTE Standard. Among all the techniques within the MIMO technology, the Multibeam Opportunistic Beamforming (MOB) strategy has been suggested in =-=[2]-=- to boost the wireless link capabilities, showing high performance, low complexity design and only partial channel information is required at the transmitter side. MOB can be operated and adopted to f... |

49 |
Theory and Problems of Probability and Statistics
- Spiegel
- 1992
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Citation Context ...ss = 1− V (K) (5) with V (K) as the probability that a maximum of K time slots are required to select a user i from a group of N i.i.d. users2, where this probability follows a Geometric Distribution =-=[4]-=- as V (K) = 1− (1− P access)K (6) In the MOB scheme, each one of the N independent users attempts to be serviced by one of the nt generated beams with P access = ntN , therefore from previous equation... |

8 |
Channel-Quality-Based Opportunistic Scheduling with ARQ in Multi-Rate Wireless Networks: Modeling and Analysis
- Issariyakul, Hossain
- 2006
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Citation Context ... to the K access slots (7), defining the maximum allowed scheduling delay. As we consider the scheduling delay, both the buffer management and source statistics for arriving packets are not addressed =-=[6]-=-; and the queues stability target [5] is neither considered. Therefore, we assume a saturated system and only consider the delay resulting from the scheduling process. The total delay (scheduling + qu... |

3 |
Robust downlink beamforming based upon outage probabiltiy criterion
- Chalise, Czylwik
- 2004
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Citation Context ...em. The length of the queue depends on the QoS system requirements, in terms of the system throughput and the maximum allowed delay (and jitter) of the delay-sensitive applications, where some outage =-=[3]-=- is considered in the QoS requirements of these applications. II. SYSTEM MODEL We focus on the single cell Downlink channel where N receivers, each one of them equipped with a single receiving antenna... |

1 |
Robust Power Allocation Schemes for Multibeam Opportunistic Transmission Strategies Under Quality of Service Constraints
- Zorba, Pérez-Neira
- 2008
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Citation Context ...erefore, providing QoS by using the scarce resources in the wireless medium is a challenging aspect for such system objective. Different notions of QoS are available at different communication layers =-=[1]-=-. At the physical layer, QoS means an acceptable signal strength level and/or Bit Error Rate at the receiver, while at the Data Link Control (DLC) or higher layers, QoS is usually expressed in terms o... |

1 |
Handoff Optimization with Fuzzy Logic
- Pubill, Pérez-Neira
(Show Context)
Citation Context ...of 20 MHz and a slot service time of 1 msec are assumed in the simulations. Table 1 shows how the SNIR values for IEEE 802.11 legacy systems are mapped to the transmission rate per beam, as stated in =-=[7]-=-. In Fig. 2, the percentage of the outage in the maximum delay satisfaction for Class 1 users is presented versus the length of the queue. A maximum allowed delay of 20msec is assumed for the class 1 ... |