Network protocols for frequency-hop packet radios with decoder side information

Pursley, M.B.; Russell, H.B.

doi:10.1109/49.286668

Cited by 50 publications

(17 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The acknowledgment metric is similar to the CA metric defined in [14]. Whenever A receives an acknowledgment from B, the acknowledgment metric is set to zero for the next transmission from A to B.…”

Section: Routing Adaptive Transmission and Physical-layer Statisticsmentioning

confidence: 99%

See 1 more Smart Citation

Energy-Efficient Routing for Frequency-Hop Wireless Networks

Pursley

Russell

Wysocarski

2004

International Journal of Wireless Information Networks

View full text Add to dashboard Cite

The use of adaptive-transmission protocols in wireless, store-and-forward, packet communication networks may result in large differences in the energy requirements of the alternative paths that are available to the routing protocol. Routing metrics can provide quantitative measures of the quality and energy efficiency of the paths from the source to the destination. Such measures are required if the routing protocol is to take advantage of the potential energy savings that are made possible by an adaptive-transmission protocol. An energy-efficient protocol suite for routing and adaptive transmission in frequency-hop wireless networks is described and evaluated, several routing metrics are compared, and tradeoffs among energy efficiency, delay, and packet success probability are investigated.

show abstract

Section: Routing Adaptive Transmission and Physical-layer Statisticsmentioning

confidence: 99%

“…The number of erasures in each received word is known. The number of errors in a received word is known if the received word is decoded, and the number of errors can be estimated even if the word is not decoded [14].…”

Section: Features Of the Frequency-hop Radio Networkmentioning

confidence: 99%

Energy-Efficient Routing for Frequency-Hop Wireless Networks

Pursley

Russell

Wysocarski

2004

International Journal of Wireless Information Networks

View full text Add to dashboard Cite

show abstract

“…In addition, more retransmissions can be allocated to the former. For an example, if the anycast group is specified as (X,A), then one possibility for node S could be to attempt, say, 4 transmissions to X, failing which attempt, say, 3 transmissions to A (similar to the ¡ £ ¢ mechanism discussed in [8], and the references therein). Another possibility could be to interleave communication attempts between X and A, until any one of them is available.…”

Section: A Mac Constraintsmentioning

confidence: 99%

“…The MAC layer then chooses the next hop depending on the instantaneous network condition. Pursley et al [8] proposed the idea of using "decoder side information" to aid forwarding decisions. By observing the number of correct symbols received (from a sequence of known transmitted symbols), the receiver may be able to estimate, statistically, the reliability of the link.…”

Section: Preliminariesmentioning

confidence: 99%

MAC-layer anycasting in ad hoc networks

Choudhury

Vaidya

2004

SIGCOMM Comput. Commun. Rev.

View full text Add to dashboard Cite

Abstract-A wireless ad hoc network is formed by a group of wireless hosts, without the use of any infrastructure. To enable communication, hosts cooperate among themselves to forward packets on behalf of each other. A key challenge in ad hoc networks lies in designing efficient routing strategies. While several routing protocols have been proposed, most of them aim to select one optimal route between the source and destination. The MAC layer at each intermediate node is then required to forward packets to the next downstream node on that route. We argue that choosing a single optimal route at the network layer may not be sufficient. Knowledge of short-term channel conditions at the MAC layer can play an important role in improving end-to-end performance. Instantaneous interference, channel contention, power constraints and other considerations may be taken into account along with the network layer's long-term view. This paper proposes MAC-layer anycasting -a forwarding strategy that combines the guidelines from the network layer, with MAC layer knowledge of the local channel. We describe some applications of MAC-layer anycasting, and discuss the performance related tradeoffs.

show abstract

“…The LRR protocol was developed originally for frequency-hop spread-spectrum packet radio networks, and the initial design is described in [9], [10]. Many of the details of the protocol are based on features used in the DARPA SURAN packet radio network [4].…”

Section: E Minimum-hop Routing Protocolmentioning

confidence: 99%

Design of a Routing Protocol that Exploits the Availability of Directional Antennas in Wireless Ad Hoc Networks

2006

View full text Add to dashboard Cite

Abstract-We present a new distributed routing protocol for direct-sequence spread-spectrum, mobile ad hoc packet radio networks that contain a mix of nodes with directional antennas and nodes with omnidirectional antennas. Two components of the routing protocol are jointly designed: a new congestionbased link metric that is utilized to identify multiple routes with low levels of congestion and a new forwarding protocol that can dynamically split traffic among the multiple routes based on the relative capabilities of the routes. To be able to efficiently exploit the nodes with the directional antennas, our routing approach accounts for the additional capabilities of these nodes and utilizes multiple routes to a destination if the routes exhibit low mutual coupling. We show that our joint routing and forwarding approach provides substantial improvements in network performance compared to a scheme that simply selects minimum-hop routes. Our investigations demonstrate that the most significant gains in network performance are achieved in networks in which there is a mix of nodes with different types of antennas, but gains in network performance are also achieved in networks in which all nodes employ omnidirectional antennas only.

show abstract

Network protocols for frequency-hop packet radios with decoder side information

Cited by 50 publications

References 7 publications

Energy-Efficient Routing for Frequency-Hop Wireless Networks

Energy-Efficient Routing for Frequency-Hop Wireless Networks

MAC-layer anycasting in ad hoc networks

Design of a Routing Protocol that Exploits the Availability of Directional Antennas in Wireless Ad Hoc Networks

Contact Info

Product

Resources

About