Known Interference Cancellation: Resolving Collisions Due to Repeated Transmissions

Qin, Chuan; Santhapuri, Naveen; Sen, Souvik; Nelakuditi, Srihari

doi:10.1109/wimesh.2010.5507902

Cited by 25 publications

(23 citation statements)

References 11 publications

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“…Our results showed that the proposed detection method has better BER performance, compared to conventional channel estimation-based detection method. The proposed method is bandwidth efficient and can be used in any system model where the self-interference signal is known, such as in two-way relay networks and multi-hop one way relay networks [17], [18].…”

Section: Discussionmentioning

confidence: 99%

Residual self-interference cancellation and data detection in full-duplex communication systems

Koohian

Mehrpouyan

Nasir

et al. 2017

2017 IEEE International Conference on Communications (ICC)

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Abstract-Residual self-interference cancellation is an important practical requirement for realizing the full potential of full-duplex (FD) communication. Traditionally, the residual selfinterference is cancelled via digital processing at the baseband, which requires accurate knowledge of channel estimates of the desired and self-interference channels. In this work, we consider point-to-point FD communication and propose a superimposed signaling technique to cancel the residual self-interference and detect the data without estimating the unknown channels. We show that when the channel estimates are not available, data detection in FD communication results in ambiguity if the modulation constellation is symmetric around the origin. We demonstrate that this ambiguity can be resolved by superimposed signalling, i.e., by shifting the modulation constellation away from the origin, to create an asymmetric modulation constellation. We compare the performance of the proposed detection method to that of the conventional channel estimation-based detection method, where the unknown channels are first estimated and then the data signal is detected. Simulations show that for the same average energy over a transmission block, the bit error rate performance of the proposed detection method is better than that of the conventional method. The proposed method does not require any channel estimates and is bandwidth efficient.

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Section: Discussionmentioning

confidence: 99%

Residual self-interference cancellation and data detection in full-duplex communication systems

Koohian

Mehrpouyan

Nasir

et al. 2017

2017 IEEE International Conference on Communications (ICC)

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“…2, we can see that PNC and FD are different from the proposed E2E-KIC, because they focus on KIC within one or two hops. More application examples of KIC can be found in [4], which also focus on KIC with one or two hops.…”

Section: Related Workmentioning

confidence: 99%

“…We ignore the low-probability event that collision occurs at the two initiating nodes when they are receiving their corresponding CTS frames 4. The terms "nodes" in the three sub-cases mean "nodes except for n i ".…”

mentioning

confidence: 99%

Approaching Single-Hop Performance in Multihop Networks: End-to-End Known-Interference Cancelation (E2E-KIC)

Wang¹,

Guo²,

Wang³

et al. 2016

IEEE Trans. Veh. Technol.

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To improve the efficiency of wireless data communications, new physical-layer transmission methods based on known-interference cancellation (KIC) have been developed. These methods share the common idea that the interference can be cancelled when the content of it is known. Existing work on KIC mainly focuses on single-hop or two-hop networks, with physical-layer network coding (PNC) and full-duplex (FD) communications as typical examples. This paper extends the idea of KIC to general multi-hop networks, and proposes an end-toend KIC (E2E-KIC) transmission method together with its MAC design. With E2E-KIC, multiple nodes in a flow passing through a few nodes in an arbitrary topology can simultaneously transmit and receive on the same channel. We first present a theoretical analysis on the effectiveness of E2E-KIC in an idealized case. Then, to support E2E-KIC in multi-hop networks with arbitrary topology, we propose an E2E-KIC-supported MAC protocol (E2E-KIC MAC), which is based on an extension of the Requestto-Send/Clear-to-Send (RTS/CTS) mechanism in the IEEE 802.11 MAC. We also analytically analyze the performance of the proposed E2E-KIC MAC in the presence of hidden terminals. Simulation results illustrate that the proposed E2E-KIC MAC protocol can improve the network throughput and reduce the end-to-end delay.Index Terms-Full duplex (FD), known-interference cancellation (KIC), medium access control (MAC) protocol design, physical-layer network coding (PNC), wireless networks.

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“…When payload size is 512 byte, T com is 3082 s for the case of IEEE 802.11 series standard including average duration of initial backoff. Thus we set T B as 522 s so that its T com is also 3082 s. This setting not only satisfies the requirement given by (9) when the packet format of Fig. 3 is employed, but also makes the absolute traffic for IFIC and CSMA/CA identical for the same G, so that their performance can be fairly compared.…”

Section: B Simulation Conditions For Ific and Csma/camentioning

confidence: 99%

“…Depending on whether or not the bit information contained in the interference signal is required to perform IC, these methods can be categorized into two types, Unknown IC [4] [5] and Known IC [6]- [9]. Successive interference cancellation (SIC) [4], which is a kind of Unknown IC, can extract desired signal even if it is weaker than the interfering signal by making use of capture effect.…”

Section: Introductionmentioning

confidence: 99%

Highly efficient multi-hop transmission using intra-flow interference cancellation and MRC

Dai

Yamao

2014

2014 IEEE International Conference on Communications (ICC)

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CSMA/CA protocol shows poor performance for multi-hop transmission due to intra-flow interference (IFI) caused by hidden terminal (HT) problem. We propose an IFIcancelling (IFIC) multi-hop transmission scheme which can efficiently relay packets under high traffic load and fading environment by using a Known interference cancellation technique. It employs the least mean square (LMS) equalization process of signal reception. A packet frame format dedicated to the proposed IFIC is designed. Theoretical model and a physical layer-included simulator are created for validation and performance evaluation. The results show that the throughput of the IFIC transmission under Rayleigh fading environment linearly increases with traffic load. When traffic load is high, it has about 3 times higher throughput than the multi-hop network with normal CSMA/CA. When 2-branch maximal-ratio combining (MRC) reception is added after IC, the throughput is further enhanced very close to the theoretical maximum.

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Known Interference Cancellation: Resolving Collisions Due to Repeated Transmissions

Cited by 25 publications

References 11 publications

Residual self-interference cancellation and data detection in full-duplex communication systems

Residual self-interference cancellation and data detection in full-duplex communication systems

Approaching Single-Hop Performance in Multihop Networks: End-to-End Known-Interference Cancelation (E2E-KIC)

Highly efficient multi-hop transmission using intra-flow interference cancellation and MRC

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