• Corpus ID: 50717112

Performance Limitations of IEEE 802.11 Networks and Potential Enhancements

  title={Performance Limitations of IEEE 802.11 Networks and Potential Enhancements},
  author={Fabrizio Granelli and Dzmitry Kliazovich and Nelson Luis Saldanha da Fonseca},
The IEEE 802.11 standard is a significant milestone in the provisioning of network connectivity for mobile users. However, due to the time-variant characteristics of wireless links, interference from other devices and terminal mobility, 802.11-based WLANs suffer from performance drawbacks in relation to wired networks. This chapter surveys the performance issues related to throughput and delay in 802.11 networks and describes proposals to overcome such shortcomings. 

Adaptive Multi-Channel Clustering in IEEE 802.11s Wireless Mesh Networks

This work presents CHaChA (Clustering Heuristic and Channel Assignment), a distributed cross-layer approach for cluster formation and channel assignment that directly integrates the default IEEE 802.11s mesh protocol information and operating modes, retaining unrestricted compliance to the WLAN standard.

Performance improvement in wireless networks using cross-layer ARQ

Transitive Grouping Based IEEE 802.11AH Protocol for Registration and Data Transmission in Internet of Things

The problems associated with the increasing growth of subscribers or IoT stations in the adopted architecture are identified and the proposed model is appraised by simulation against the following metrics or problems prevalent in an IoT or WCDMA environment like; congestion at peak time, resource wastages, throughput and successful transmission probability.

Service-Aware Performance Optimization of Wireless Access Networks

It is argued that performance improvement of multimedia applications over wireless access networks can be achieved through considering the application-specific requirements also called service- or context-awareness and proposed a novel approach aiming at TCP performance improvement in WLAN networks.

Service-Aware Retransmission Control in Cellular Networks

This paper proposes a service-aware cross-layer approach between application/transport layers on the mobile terminal and link layer on the wireless base station to enable dynamic control on the level

APOHN: subnetwork layering to improve TCP performance over heterogeneous paths

This paper proposes a novel architecture, named APOHN, designed for data communications over heterogeneous networks that extends ISO/OSI protocol stack model with an additional layer designed for subnetwork communications and optimized with specific physical subnetwork characteristics in mind.


This paper proposes a scheme that makes use of N-ACK along with semi-random back-off in order to improve throughput even when number of nodes are more besides resolving hidden node problem.

Formal Methods in Cross Layer Modeling and Optimization of Wireless Networks: State of the Art and Future Directions

This chapter provides a detailed survey of the state-of-the-art and future directions in the usage of formal methods for cross-layer modeling and optimization of wireless networks.

Lightweight Mobile and Wireless Systems: Technologies, Architectures, and Services

This paper aims to demonstrate the efforts towards in-situ applicability of EMMARM, as to provide real-time information about the response of the immune system to natural disasters.

Tion in Wireless Local Area Networks

Cross-Layer Performance Optimization in Wireless Local Area Networks



Throughput and delay limits of IEEE 802.11

It is shown that a theoretical throughput upper limit and a theoretical delay lower limit exist for the IEEE 802.11 protocols, indicating that by simply increasing the data rate without reducing overhead, the enhanced performance is bounded even when the data rates goes into infinitely high.

A Delayed-ACK Scheme for MAC-Level Performance Enhancement of Wireless LANs

The design of a new protocol (DAWL) as an enhancement of IEEE 802.11 is proposed, with the aim of reducing supplementary traffic overhead and increasing the bandwidth available for actual data transmission.

IEEE 802.11 packet delay-a finite retry limit analysis

An analytical model based on a Markov chain is presented which allows us to derive closed form expressions for the packet delays, the probability of a packet being discarded when it reaches the maximum retransmission limit and the average time to drop such a packet for the basic and RTS/CTS access mechanisms.

802.11g CP: a solution for IEEE 802.11g and 802.11b inter-working

This paper proposes an alternative solution, which improves the system throughput by avoiding the costly RTS/CTS usage and utilizes the characteristics of the existingMAC with a minimal rule change, which requires virtually no change in the existing MAC implementation.

DAWL: A Delayed-ACK Scheme for MAC-Level Performance Enhancement of Wireless LANs

The design of a new protocol as an enhancement of IEEE 802.11 is proposed, with the aim of reducing supplementary traffic overhead and increasing the bandwidth available for actual data transmission.

Does the IEEE 802.11 MAC protocol work well in multihop wireless ad hoc networks?

It is concluded that the current version of this wireless LAN protocol does not function well in multihop ad hoc networks, and it is doubt whether the WaveLAN-based system is workable as a mobile ad hoc testbed.

A cross-layer scheme for TCP performance improvement in wireless LANs

A novel approach for the performance enhancement of the most commonly used transport protocol (TCP) in a wireless environment through cross-layer collaboration with the introduction of an ARQ snoop agent within the protocol stack of a wireless host.

Mobile-end transport protocol: an alternative to TCP/IP over wireless links

  • Kuang-Yeh WangS. Tripathi
  • Computer Science, Business
    Proceedings. IEEE INFOCOM '98, the Conference on Computer Communications. Seventeenth Annual Joint Conference of the IEEE Computer and Communications Societies. Gateway to the 21st Century (Cat. No.98
  • 1998
A new protocol is proposed that replaces TCP/IP over the wireless link by a simpler protocol with smaller headers, if the link is the last hop along a data path, and shifts functions needed to communicate with an Internet host from the mobile host to the base station, so that the distinct wireless link is hidden from the outside Internet.

Improving TCP performance over wireless networks at the link layer

We present the transport unaware link improvement protocol (TULIP), which dramatically improves the performance of TCP over lossy wireless links, without competing with or modifying the transport- or

Design and implementation of indirect protocols for mobile wireless environments

This dissertation presents the design and implementation of Indirect Protocols, which allow the use of specialized network protocols for the wireless medium and mobile hosts in a way that is backward compatible with the existing protocols used over the wired internetwork.