Goals and challenges of the DARPA GloMo program [global mobile information systems]

Leiner, Barry M.; Ruther, R.J.; Sastry, Ambatipudi

doi:10.1109/98.556477

Cited by 68 publications

(21 citation statements)

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“…United State Department of Defence (DOD) continued financing for programs such as Globe Mobile Information System (GloMo) [4] Near Term Digital Radio (NTDR) [5] is work by US Army. This is the only real ad hoc network in use.…”

Section: History To Present Ad Hoc Networkmentioning

confidence: 99%

“…However regardless the modulation technique both the DAF and AAF performance tends to equalize as SNR increases, so in single route non-cooperative communication MHWN with Rayleigh fading channels, DAF relaying provides higher performance than AAF relaying. The end to end ABER as a function of the SNR per bit for two hop with 4-QAM modulation, using both DAF and AAF relaying over Nakagami-m channels with m belongs to (2,3,4) analogous to the Rayleigh channel case, in Nakagami-m propagation channels the DAF relaying barely outperforms AAF for low SNR values, however index m increases for a fixed value of SNR, the difference in end to and ABER between the DAF and AAF strategies increases.…”

Section: Table1 Effect Of Nc Technique On Minimum Ber and Power Modumentioning

confidence: 99%

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A Review on Minimization of BER and Power of Ad hoc Network

Choudhary¹

2015

IJIRCCE

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ABSTRACT:Over the last decade, a large number of pioneering works have provided foundations for both theory and applications of Wireless Ad hoc Networks (WLAN). As ad hoc technology is becoming the demand of present and future trends that needs for a reliable communication link having minimum BER and power. This review work presents the impact of mobility, and energy efficiency and clustering on optimization of Bit Error Rate (BER) and power as well as on throughput. An analysis review is made on Network coding scheme to optimize BER and throughput. And finally how these factors vary in WLAN is discussed in conclusion.

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Section: History To Present Ad Hoc Networkmentioning

confidence: 99%

Section: Table1 Effect Of Nc Technique On Minimum Ber and Power Modumentioning

confidence: 99%

A Review on Minimization of BER and Power of Ad hoc Network

Choudhary¹

2015

IJIRCCE

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“…The history of wireless ad hoc networks can be traced back to the Defense Advanced Research Project Agency (DAPRPA) packet radio networks (PRNet), which evolved into the survivable adaptive radio networks (SURAD) program [11]. Ad hoc networks have play an important role in military applications and related research efforts, for example, the global mobile information systems (GloMo) program [12] and the near-term digital radio (NTDR) program [13]. Recent years have seen a new spate of industrial and commercial applications for wireless ad hoc networks, as viable communication equipment and portable computers become more compact and available.…”

Section: Introductionmentioning

confidence: 99%

Wireless Ad-Hoc Networks

Zhou¹

2012

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Deployed in 1990's, Mobile Ad-hoc networks have been widely researched for many years. Mobile Ad-hoc Networks are a collection of two or more devices equipped with wireless communications and networking capability. These devices can communication with other nodes that immediately within their radio range or one that is outside their radio range. For the later, the nodes should deploy an intermediate node to be the router to route the packet from the source toward the destination. The Wireless Ad-hoc Networks do not have gateway, every node can act as the gateway. Although since 1990s', lots of research has been done on this particular field, it has often been questioned as to whether the architecture of Mobile Ad-hoc Networks is a fundamental flawed architecture. The main reason for the argument is that Mobile Ad-hoc Networks are almost never used in practice, almost every wireless network nodes communicate to base-station and access points instead of co-operating to forward packets hop-by-hop.We take the position that Mobile Ad-hoc Networks (MANET) are a fundamentally flawed architecture. As argument, we try to clarify the definition, architecture and the characters of MANET, as well as the main challenges of constructing the MANET. Although many works have been done to solve the problem, we will show in this paper that it is very difficult to solve these limitations which made the Mobile Ad-hoc Networks a flawed architecture.After giving many evidences and analysis, we could see that the key technologies of Wireless Ad-hoc Networks were not implemented as well as we expect. That is to say, many problems are inherently unsolvable. Thus, we could explain why we take the position that Mobile Ad-hoc Networks are flawed architecture.

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“…Starting from the days of the packet radio networks (PRNET) [10,13] in the 1970s and survivable adaptive networks (SURAN) [11] in the 1980s to the global mobile (GloMo) networks [14] in the 1990s and the current mobile ad hoc networks (MANET) [6], the multi-hop ad hoc network has received great amount of research attention. The ease of deployment without any existing infrastructure makes ad hoc networks an attractive choice for applications such as military operations, disaster recovery, search-and-rescue, and so forth.…”

Section: Introductionmentioning

confidence: 99%

Ad Hoc Routing with Early Unidirectionality Detection and Avoidance

Lee

2004

Personal Wireless Communications

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Abstract. This paper is motivated by the observation that current research in ad hoc networks mostly assumes a physically flat network architecture with the nodes having homogeneous characteristics, roles, and networking-and processingcapabilities (e.g., network resources, computing power, and transmission power). In real-world ad hoc networks however, node heterogeneity is inherent. New mechanisms at the network layer are required for effective and efficient utilization of such heterogeneous networks. We discuss the issues and challenges for routing protocol design in heterogeneous ad hoc networks, and focus on the problem of quickly detecting and avoiding unidirectional links. We propose a routing framework called Early Unidirectionality Detection and Avoidance (EUDA) that utilizes geographical distance and path loss between the nodes for fast detection of asymmetric and unidirectional routes. We evaluate our scheme through ns-2 simulation and compare it with existing approaches. Our results demonstrate that our techniques work well in these realistic, heterogeneous ad hoc networking environments with unidirectional links.

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Goals and challenges of the DARPA GloMo program [global mobile information systems]

Cited by 68 publications

References 0 publications

A Review on Minimization of BER and Power of Ad hoc Network

A Review on Minimization of BER and Power of Ad hoc Network

Wireless Ad-Hoc Networks

Ad Hoc Routing with Early Unidirectionality Detection and Avoidance

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