Multiple access relay channel: Achievable rates over orthogonal channels

Al-Sawalmeh, Wael; Al-qudah, Zouhair; Darabkh, Khalid A.

doi:10.1016/j.aeue.2019.06.036

Cited by 5 publications

(6 citation statements)

References 23 publications

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“… The case of

δ_{3} = 0

returns to the case of no interference cancellation at the primary destination. The case of

δ_{3} = false(| h_{31} |^{2} / | h_{21} |^{2} false) false(P_{normals} / P_{2} false)

means that the common interference signal is completely cancelled at the primary destination. Remark 3 When there is no common interference source, i.e.

S = \emptyset

, the achievable rate region of the IC channel is studied in the following cases: In [23], in the case of (i) weak IC and (ii) the secondary transmitter has non‐causal access to the primary signal, we showed that the capacity of the IC is attained by letting both the primary sender and the secondary sender transmit only the private parts. Therefore, in this paper, the primary transmitter and the secondary one transmit only the private message. HK [7] derived an achievable rate region of the IC in which there is no cooperation between the senders.…”

Section: Achievable Rate Region Of the Ics With Non‐causal Noisy Obmentioning

confidence: 99%

“…At the end of this phase, due to channel degradedness, the cognitive transmitter may decode either the primary signal or the common interference signal. We note that the case of partial listening, decoding, and then encoding were studied in many different scenarios in [23, 31, 32]. In the second phase, which lasts for

false(m_{2} - m_{1} false) \geq 0

symbols, the cognitive transmitter can encode its signal by considering the decoded signal from the first phase as an available state.…”

Section: Achievable Rate Region Of the Ics With Causal Noisy Observmentioning

confidence: 99%

See 1 more Smart Citation

Achievable rates of Gaussian cognitive interference channel with common interference

Al-qudah¹,

Darabkh

2020

IET Communications

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“… The case of

δ_{3} = 0

returns to the case of no interference cancellation at the primary destination. The case of

δ_{3} = false(| h_{31} |^{2} / | h_{21} |^{2} false) false(P_{normals} / P_{2} false)

means that the common interference signal is completely cancelled at the primary destination. Remark 3 When there is no common interference source, i.e.

S = \emptyset

Section: Achievable Rate Region Of the Ics With Non‐causal Noisy Obmentioning

confidence: 99%

false(m_{2} - m_{1} false) \geq 0

symbols, the cognitive transmitter can encode its signal by considering the decoded signal from the first phase as an available state.…”

Section: Achievable Rate Region Of the Ics With Causal Noisy Observmentioning

confidence: 99%

Achievable rates of Gaussian cognitive interference channel with common interference

Al-qudah¹,

Darabkh

2020

IET Communications

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“…Multiple access relay channel (MARC) has been receiving an extensive investigation in both application and theory of wireless communication networks 1–12 . Basically, MARC is composed of many senders that have an interest in transmitting different messages to a receiver with the help of an intermediate device, the relay.…”

Section: Introductionmentioning

confidence: 99%

“…The MARC in the case that the relay operates in full‐duplex mode was extensively investigated 1–5 . For instance, Tandon and Poor 1 characterized the capacity of the MARC for the cases of physically degraded channel and semi‐deterministic channel.…”

Section: Introductionmentioning

confidence: 99%

On the capacity region of the multiple access half‐duplex relay channel

Al-qudah

Alrashdan

Darabkh

2021

Int J Communication

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Summary In this paper, we consider the transmission over multiple access relay channel (MARC) in which the relay operates in half‐duplex mode. The main contribution of this paper is establishing the capacity of the multiple access half‐duplex relay channel (MAHRC). Toward achieving this goal, we first derive a new achievable rate region. While deriving the achievable rate region, well‐known encoding and decoding schemes, which are used for transmission and reception over the degraded broadcast channel and the multiple access channel, are used. In this transmission scheme, the transmission from the two sources via the half‐duplex relay, to the destination, is split into two phases. Afterwards, an outer bound to the transmission over the discrete memoryless MAHRC is developed. Consequently, we show that the achievable rate region matches the outer bound and therefore the capacity region is formed. Further, the capacity region is extended to the case of Gaussian channel. Additionally, many numerical examples are shown to validate our theoretical derivations. In particular, these numerical examples show that the achievable rate region, and then the capacity, that we derive is larger than the well‐known results in the literature.

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“…As an extension of the MAC technique, multiple access relay channel (MARC), in which a relay extends the two users' signals' to their destination, was studied in many different scenarios. [10][11][12][13][14] For instance, Sankar et al 11 derived the sum capacity of the degraded Gaussian MARC. Taghavi and Hodtani 13 considered the effect of the relay-source feedback on the achievable rate region.…”

Section: Introductionmentioning

confidence: 99%

A novel multiple access diamond channel model

Al-qudah

Bataineh

Musa

2020

Int J Communication

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SummaryThis paper introduces a new multiuser communication model, which we call multiple access diamond channel. In this channel model, many sources transmit their signals to a destination in the case of no direct links between the end terminals. Therefore, we employ two parallel relays to extend transmission to the destination. Further, we specifically characterize two different transmission schemes along with their respective achievable rate regions. Then, we develop an outer bound to the transmission in each scheme. Moreover, we present many numerical examples to mainly compare between the two different transmission schemes and to distinguish the case for which we attain the capacity region.

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Multiple access relay channel: Achievable rates over orthogonal channels

Cited by 5 publications

References 23 publications

Achievable rates of Gaussian cognitive interference channel with common interference

Achievable rates of Gaussian cognitive interference channel with common interference

On the capacity region of the multiple access half‐duplex relay channel

A novel multiple access diamond channel model

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