Design and analysis of an IEEE 802.16e-based OFDMA communication system

Balachandran, K.; Calin, Doru; Cheng, Fang-Chen; Joshi, Niranjan; Kang, Joseph H.; Kogiantis, Achilles; Rausch, Kurt; Rudrapatna, Ashok N.; Seymour, James P.; Sun, Jiachen

doi:10.1002/bltj.20196

Cited by 33 publications

(16 citation statements)

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“…The modulation scheme we consider is rate 1/2 coded 64 Quadrature Amplitude Modulation (64-QAM 1/2). For this modulation, the considered [SNR min , SNR max ] range is [11.5, 15.5] dB [5]. A node with a lower SNR value has 100% loss rate, while a node with a higher SNR value has 0% loss rate.…”

Section: A Simulation Results For Protocol 1 Andmentioning

confidence: 99%

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Using NATO! for Partially Reliable Large Scale Multicast Streaming in Broadcast Wireless Networks

Cohen

Landau

2009

IEEE INFOCOM Workshops 2009

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Abstract-Streaming multicast is one of the most important Transport layer services in future broadcast wireless networks. This service enables the delivery of real-time voice and video applications to an almost unlimited number of mobile devices, by taking advantage of a base station's ability to transmit a single packet to all the nodes in its cell. While strict delivery assurance is not necessary and not possible for such applications, some level of assurance is provided using Transport layer FEC (Forward Error Correction) codes. In this paper we show how to improve the performance of large-scale partially reliable multicast streaming in broadcast wireless networks, using the NATO! scheme. NATO!, presented in another paper, is a generic real-time scheme that allows a node to estimate the size of any subset of nodes affected by the same event using a few messages received from this subset.

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Section: A Simulation Results For Protocol 1 Andmentioning

confidence: 99%

“…The following procedure finds the expected loss distribution by mapping an SNR value into the corresponding probability to receive a packet for the considered modulation and coding scheme (see [5] The first protocol we propose is for OC-1. Let {(p i , r i )|i = 1, .…”

Section: The Proposed Protocolsmentioning

confidence: 99%

Using NATO! for Partially Reliable Large Scale Multicast Streaming in Broadcast Wireless Networks

Cohen

Landau

2009

IEEE INFOCOM Workshops 2009

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“…Throughout this section we consider 7 possible MCSs. These MCSs and the corresponding probabilities of the designated receiver to correctly receive a packet for a certain SNR are computed according to [4]. To compare the results of using multiple MCSs with those of a single MCS, we now present the optimal single MCS algorithm:…”

Section: Simulation Study Of the Various Algorithmsmentioning

confidence: 99%

Cross-Layer Hybrid FEC/ARQ Reliable Multicast With Adaptive Modulation and Coding in Broadband Wireless Networks

Cohen

Grebla

Katzir

2010

IEEE/ACM Trans. Networking

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Abstract-In this paper we define and address a new problem that arises when a base station in a broadband wireless network wishes to multicast information to a large group of nodes and to guarantee some level of reliability using Application layer FEC codes. Every data block to be multicast is translated into a sequence of K + n packets, from which every receiver must receive at least K in order to correctly decode the block. The new problem is to determine which PHY layer MCS (Modulation and Coding Scheme) the base station should use for each packet. We present several variants of this problem, which differ in the number of ARQ (Automatic Repeat reQuest) rounds during which the delivery of a data block must be completed. Most of these variants are shown to be NP-hard. However, we present optimal solutions for practical instances, where the number of MCSs is small, and efficient approximations and heuristics for the general case of each variant.

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“…1 is based on the performance evaluation results presented in [13]. Due to the frame duration of 5 ms, the 80 kbit/s per VoIP service flow results in a required average transmission of 200 bits per frame.…”

Section: Simulation Scenariomentioning

confidence: 99%

A Zone Assignment Algorithm for Fractional Frequency Reuse in Mobile WiMAX Networks

Einhaus¹,

Mäder²,

Pérez-Costa³

2010

Networking 2010

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Abstract. Fractional Frequency Reuse (FFR) is a key concept for increasing the spectral efficiency of OFDMA-based broadband wireless access systems such as Mobile WiMAX. One of the main challenges when using FFR is to decide which mobile stations are assigned to which FFR time zone within a WiMAX MAC frame, so that the frame resource utilization efficiency is maximized while meeting the QoS demands of all users. In this paper we propose an efficient algorithm to address this problem with low computational complexity. The performance of the algorithm is compared with the optimum zone assignment. The evaluation has been conducted by means of a comprehensive simulation study of a typical Mobile WiMAX deployment scenario with various numbers of VoIP users.

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Design and analysis of an IEEE 802.16e-based OFDMA communication system

Cited by 33 publications

References 1 publication

Using NATO! for Partially Reliable Large Scale Multicast Streaming in Broadcast Wireless Networks

Using NATO! for Partially Reliable Large Scale Multicast Streaming in Broadcast Wireless Networks

Cross-Layer Hybrid FEC/ARQ Reliable Multicast With Adaptive Modulation and Coding in Broadband Wireless Networks

A Zone Assignment Algorithm for Fractional Frequency Reuse in Mobile WiMAX Networks

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