Optimum transmission ranges in multihop packet radio networks in the presence of fading

Zorzi, Michele; Pupolin, S.

doi:10.1109/26.392962

Cited by 117 publications

(74 citation statements)

References 6 publications

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“…For comparison, for a four-hop connection with hops of length , we have and (20) The ratio between the two energies is (21) Hence, the diversity scheme is more efficient for (22) This curve is plotted in Fig. 9(a).…”

Section: B Implicit Transmissionsmentioning

confidence: 99%

Analysis and design of diversity schemes for ad hoc wireless networks

2005

IEEE J. Select. Areas Commun.

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Abstract-Diversity schemes permit efficient communication over fading channels but are often hard to analyze and design in networks with many nodes. For Rayleigh-fading channels, there exists an interesting relationship between resistive circuits and time and path diversity mechanisms in wireless ad hoc networks. A resistor-like network element, the erristor, representing the normalized noise-to-signal ratio, is introduced. Given an end-to-end packet delivery probability, the logarithmic mapping from link reception probabilities to erristor values greatly simplifies the problems of power allocation and the selection of time and path diversity schemes, which is illustrated in a number of examples. We focus on transmission strategies with selection combining and simple noncoherent "decode-and-forward" strategies, which is motivated by their practicality. Thanks to its conceptual simplicity, the formalism that is developed provides valuable insight into the benefits of diversity mechanisms.

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Section: B Implicit Transmissionsmentioning

confidence: 99%

Analysis and design of diversity schemes for ad hoc wireless networks

2005

IEEE J. Select. Areas Commun.

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“…In fact, a plethora of analysis was performed based on the metric EFP (e.g. (Sousa & Silvester, 1990), (Sousa, 1990), (Zorzi & Pupolin, 1995)). …”

Section: Expected Forward Progressmentioning

confidence: 99%

A Survey on the Characterization of the Capacity of Ad Hoc Wireless Networks

Cardieri¹,

Nardell²

2011

Mobile Ad-Hoc Networks: Applications

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“…While most of the literature on ad hoc wireless networks has concentrated on the design of medium access control (MAC) and routing protocols [2], the physical layer plays a major role in influencing the performance of ad hoc wireless networks. Researchers have considered, for example, the impact of the physical channel characteristics on the "optimal" node transmission radius [3,4]. However, in ad hoc wireless networks, a comprehensive cross-layer design is needed to really capture the effects of the physical layer on higher layers.…”

Section: Introductionmentioning

confidence: 99%

A Combinatorial Approach to the Optimization of the Channel Utilization Ratio in Ad Hoc Wireless Networks

Ferrari¹,

Tonguz²

2007

TOEEJ

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Abstract:In this paper, after formalizing the concept of channel utilization ratio (CUR) in ad hoc wireless networks, we investigate its impact on the network performance. Given that a node can hold a multi-hop route for a time interval defined as reserved channel utilization interval (RCUI), we assume that the node effectively utilizes the reserved route for an interval defined as effective channel utilization interval (ECUI), the duration of which corresponds to the duration of the message to be transmitted. This models a realistic scenario, where a node may use the shared radio medium for only a portion of the reservation interval. Defining the CUR as the ratio between the durations of the RCUI and the ECUI, we develop a combinatorial framework which leads to the optimization of the CUR for maximizing the effective transport capacity, which represents the actual bandwidth-distance product carried by the network. We also show that the way, either continuous or discontinuous, in which a node transmits its message entails minor performance differences, indicating clearly that the CUR is a meaningful network performance indicator.

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Optimum transmission ranges in multihop packet radio networks in the presence of fading

Cited by 117 publications

References 6 publications

Analysis and design of diversity schemes for ad hoc wireless networks

Analysis and design of diversity schemes for ad hoc wireless networks

A Survey on the Characterization of the Capacity of Ad Hoc Wireless Networks

A Combinatorial Approach to the Optimization of the Channel Utilization Ratio in Ad Hoc Wireless Networks

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